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Prepare your system
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DNS setup
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DNS setup
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Table of contents
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References
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Reverse DNS of your IP address
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< a href = "#the-minimal-dns-configuration" class = "md-nav__link" >
The minimal DNS configuration
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DKIM, SPF and DMARC
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The advanced DNS configuration
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Testing
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Misc
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Optional DMARC Statistics
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< a href = "#email-test-for-spf-dkim-and-dmarc" class = "md-nav__link" >
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Email test for SPF, DKIM and DMARC:
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Fully Qualified Domain Name (FQDN)
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Installation, Update & Migration
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Installation, Update & Migration
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Installation
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Update
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Migration
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Deinstallation
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Post Installation Tasks
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Post Installation Tasks
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Advanced SSL
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Disable IPv6
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DMARC Reporting
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IP bindings
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Local MTA on Docker host
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Logging
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Reverse Proxy
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Rspamd UI
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SNAT
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Sync job migration
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Models
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Models
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ACL
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< a href = "../../models/model-passwd/" class = "md-nav__link" >
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Password hashing
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Sender and receiver model
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General Troubleshooting
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General Troubleshooting
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Introduction
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< a href = "../../troubleshooting/debug-admin_login_sogo/" class = "md-nav__link" >
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Admin login to SOGo
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< a href = "../../troubleshooting/debug-rspamd_memory_leaks/" class = "md-nav__link" >
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Advanced: Find memory leaks in Rspamd
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Attach to a Container
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Common Problems
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< a href = "../../troubleshooting/debug-logs/" class = "md-nav__link" >
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Logs
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< a href = "../../troubleshooting/debug-mysql_upgrade/" class = "md-nav__link" >
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Manual MySQL upgrade
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Recover crashed Aria storage engine
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< a href = "../../troubleshooting/debug-rm_volumes/" class = "md-nav__link" >
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Remove Persistent Data
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< a href = "../../troubleshooting/debug-reset_pw/" class = "md-nav__link" >
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Reset Passwords (incl. SQL)
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< a href = "../../troubleshooting/debug-reset_tls/" class = "md-nav__link" >
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Reset TLS certificates
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Backup & Restore
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Backup & Restore
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< ul class = "md-nav__list" data-md-scrollfix >
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2021-04-01 12:20:45 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_7_1" >
2023-01-08 16:57:17 +01:00
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_7_1" id = "__nav_7_1_label" tabindex = "0" >
2022-02-04 14:27:16 +01:00
Component backup & restore
2021-09-23 20:30:54 +02:00
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_7_1_label" aria-expanded = "false" >
2021-04-01 12:20:45 +02:00
< label class = "md-nav__title" for = "__nav_7_1" >
< span class = "md-nav__icon md-icon" > < / span >
2022-02-04 14:27:16 +01:00
Component backup & restore
2021-04-01 12:20:45 +02:00
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../backup_restore/b_n_r-backup/" class = "md-nav__link" >
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Backup
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../backup_restore/b_n_r-restore/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Restore
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-10-18 16:21:29 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../backup_restore/b_n_r-coldstandby/" class = "md-nav__link" >
2021-10-18 16:23:58 +02:00
Cold-standby (rolling backup)
2021-10-18 16:21:29 +02:00
< / a >
< / li >
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_7_3" >
2023-01-08 16:57:17 +01:00
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_7_3" id = "__nav_7_3_label" tabindex = "0" >
2021-10-18 16:21:29 +02:00
Manual backups
2021-09-23 20:30:54 +02:00
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_7_3_label" aria-expanded = "false" >
2021-10-18 16:21:29 +02:00
< label class = "md-nav__title" for = "__nav_7_3" >
2021-04-01 12:20:45 +02:00
< span class = "md-nav__icon md-icon" > < / span >
2021-10-18 16:21:29 +02:00
Manual backups
2021-04-01 12:20:45 +02:00
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../backup_restore/b_n_r-backup_restore-maildir/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Maildir
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../backup_restore/b_n_r-backup_restore-mysql/" class = "md-nav__link" >
2021-10-18 16:21:29 +02:00
MySQL (mysqldump)
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-08-16 12:41:17 +02:00
< / ul >
< / nav >
< / li >
2021-09-23 20:30:54 +02:00
2021-08-16 12:41:17 +02:00
2021-09-23 20:30:54 +02:00
2021-08-16 12:41:17 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_7_4" >
2021-09-23 20:30:54 +02:00
2023-01-08 16:57:17 +01:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_7_4" id = "__nav_7_4_label" tabindex = "0" >
2021-10-18 16:21:29 +02:00
mailcow-internal backups
2021-09-23 20:30:54 +02:00
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_7_4_label" aria-expanded = "false" >
2021-10-18 16:21:29 +02:00
< label class = "md-nav__title" for = "__nav_7_4" >
2021-08-16 12:41:17 +02:00
< span class = "md-nav__icon md-icon" > < / span >
2021-10-18 16:21:29 +02:00
mailcow-internal backups
2021-08-16 12:41:17 +02:00
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-08-16 12:41:17 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../backup_restore/b_n_r-accidental_deletion/" class = "md-nav__link" >
2021-08-16 12:41:17 +02:00
Recover accidentally deleted data
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-08-16 12:41:17 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8" >
2023-01-08 16:57:17 +01:00
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_8" id = "__nav_8_label" tabindex = "0" >
2021-09-23 20:30:54 +02:00
Manual/Guides/Examples
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "1" aria-labelledby = "__nav_8_label" aria-expanded = "false" >
2021-04-01 12:20:45 +02:00
< label class = "md-nav__title" for = "__nav_8" >
< span class = "md-nav__icon md-icon" > < / span >
Manual/Guides/Examples
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_1" >
2021-09-23 20:30:54 +02:00
2023-01-08 16:57:17 +01:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_8_1" id = "__nav_8_1_label" tabindex = "0" >
2021-09-23 20:30:54 +02:00
mailcow UI
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_1_label" aria-expanded = "false" >
2021-04-01 12:20:45 +02:00
< label class = "md-nav__title" for = "__nav_8_1" >
< span class = "md-nav__icon md-icon" > < / span >
mailcow UI
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-bl_wl/" class = "md-nav__link" >
2021-09-23 20:47:28 +02:00
Blacklist / Whitelist
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-05-28 11:12:28 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-config/" class = "md-nav__link" >
2021-09-23 20:47:28 +02:00
Configuration
2021-05-28 11:12:28 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-05-28 11:12:28 +02:00
2021-09-23 20:30:54 +02:00
2021-05-28 11:12:28 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-css/" class = "md-nav__link" >
2021-09-23 20:47:28 +02:00
CSS overrides
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2022-05-05 21:47:00 +02:00
< li class = "md-nav__item" >
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-netfilter/" class = "md-nav__link" >
Netfilter
< / a >
< / li >
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-pushover/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Pushover
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-spamfilter/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Spamfilter
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-05-05 21:47:00 +02:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-sub_addressing/" class = "md-nav__link" >
Sub-addressing
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-tags/" class = "md-nav__link" >
Tags (for Domains and Mailboxes)
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-spamalias/" class = "md-nav__link" >
2021-09-23 20:47:28 +02:00
Temporary email aliases
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-tfa/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Two-Factor Authentication
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/mailcow-UI/u_e-mailcow_ui-fido/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
WebAuthn / FIDO2
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_2" >
2023-01-08 16:57:17 +01:00
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_8_2" id = "__nav_8_2_label" tabindex = "0" >
2021-09-23 20:30:54 +02:00
Postfix
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_2_label" aria-expanded = "false" >
2021-04-01 12:20:45 +02:00
< label class = "md-nav__title" for = "__nav_8_2" >
< span class = "md-nav__icon md-icon" > < / span >
Postfix
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-trust_networks/" class = "md-nav__link" >
2021-09-08 11:41:26 +02:00
Add trusted networks
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-custom_transport/" class = "md-nav__link" >
2021-09-08 11:41:26 +02:00
Custom transport maps
2021-04-01 12:20:45 +02:00
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-extra_cf/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Customize/Expand main.cf
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-disable_sender_verification/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Disable Sender Addresses Verification
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-attachment_size/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Max. message size (attachment size)
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-08 11:41:26 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-relayhost/" class = "md-nav__link" >
2021-09-08 11:41:26 +02:00
Relayhosts
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-09-08 11:41:26 +02:00
2021-09-23 20:30:54 +02:00
2021-09-08 11:41:26 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-pflogsumm/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Statistics with pflogsumm
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-08 11:41:26 +02:00
2021-09-23 20:30:54 +02:00
2021-09-08 11:41:26 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Postfix/u_e-postfix-postscreen_whitelist/" class = "md-nav__link" >
2021-09-08 11:41:26 +02:00
Whitelist IP in Postscreen
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-09-08 11:41:26 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_3" >
2023-01-08 16:57:17 +01:00
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_8_3" id = "__nav_8_3_label" tabindex = "0" >
2021-09-23 20:30:54 +02:00
Unbound
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2023-01-28 17:53:25 +01:00
< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_3_label" aria-expanded = "false" >
2021-04-01 12:20:45 +02:00
< label class = "md-nav__title" for = "__nav_8_3" >
< span class = "md-nav__icon md-icon" > < / span >
Unbound
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/Unbound/u_e-unbound-fwd/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Using an external DNS service
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_4" >
2021-09-23 20:30:54 +02:00
2023-01-08 16:57:17 +01:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_8_4" id = "__nav_8_4_label" tabindex = "0" >
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Dovecot
< span class = "md-nav__icon md-icon" > < / span >
< / label >
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< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_4_label" aria-expanded = "false" >
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< label class = "md-nav__title" for = "__nav_8_4" >
< span class = "md-nav__icon md-icon" > < / span >
Dovecot
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-extra_conf/" class = "md-nav__link" >
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Customize/Expand dovecot.conf
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< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-any_acl/" class = "md-nav__link" >
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Enable "any" ACL settings
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< / a >
< / li >
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2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-expunge/" class = "md-nav__link" >
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Expunge a Users mails
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< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-fts/" class = "md-nav__link" >
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FTS (Solr)
< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-idle_interval/" class = "md-nav__link" >
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IMAP IDLE interval
< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-mail-crypt/" class = "md-nav__link" >
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Mail crypt
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-more/" class = "md-nav__link" >
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More Examples with DOVEADM
< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-vmail-volume/" class = "md-nav__link" >
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Move Maildir (vmail)
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-public_folder/" class = "md-nav__link" >
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Public folders
< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-static_master/" class = "md-nav__link" >
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Static master user
< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Dovecot/u_e-dovecot-catchall_vacation/" class = "md-nav__link" >
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Vacation replies for catchall addresses
< / a >
< / li >
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< / ul >
< / nav >
< / li >
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< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_5" >
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< label class = "md-nav__link" for = "__nav_8_5" id = "__nav_8_5_label" tabindex = "0" >
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Nginx
< span class = "md-nav__icon md-icon" > < / span >
< / label >
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< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_5_label" aria-expanded = "false" >
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< label class = "md-nav__title" for = "__nav_8_5" >
< span class = "md-nav__icon md-icon" > < / span >
Nginx
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Nginx/u_e-nginx_webmail-site/" class = "md-nav__link" >
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Create subdomain webmail.example.org
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< / a >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Nginx/u_e-nginx_custom/" class = "md-nav__link" >
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Custom sites
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< / a >
< / li >
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< / ul >
< / nav >
< / li >
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< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_6" >
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< label class = "md-nav__link" for = "__nav_8_6" id = "__nav_8_6_label" tabindex = "0" >
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Watchdog
< span class = "md-nav__icon md-icon" > < / span >
< / label >
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< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_6_label" aria-expanded = "false" >
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< label class = "md-nav__title" for = "__nav_8_6" >
< span class = "md-nav__icon md-icon" > < / span >
Watchdog
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
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< a href = "../../manual-guides/Watchdog/u_e-watchdog-thresholds/" class = "md-nav__link" >
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Thresholds
< / a >
< / li >
< / ul >
< / nav >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Redis/u_e-redis/" class = "md-nav__link" >
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Redis
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/Rspamd/u_e-rspamd/" class = "md-nav__link" >
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Rspamd
< / a >
< / li >
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2021-09-23 20:30:54 +02:00
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2022-04-07 21:33:26 +02:00
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_9" >
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< label class = "md-nav__link" for = "__nav_8_9" id = "__nav_8_9_label" tabindex = "0" >
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ClamAV
< span class = "md-nav__icon md-icon" > < / span >
< / label >
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< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_9_label" aria-expanded = "false" >
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< label class = "md-nav__title" for = "__nav_8_9" >
< span class = "md-nav__icon md-icon" > < / span >
ClamAV
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../manual-guides/ClamAV/u_e-clamav-whitelist/" class = "md-nav__link" >
Whitelist
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../manual-guides/ClamAV/u_e-clamav-additional_dbs/" class = "md-nav__link" >
Additional Databases
< / a >
< / li >
< / ul >
< / nav >
< / li >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/SOGo/u_e-sogo/" class = "md-nav__link" >
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SOGo
< / a >
< / li >
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< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_8_11" >
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2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_8_11" id = "__nav_8_11_label" tabindex = "0" >
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Docker
< span class = "md-nav__icon md-icon" > < / span >
< / label >
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< nav class = "md-nav" data-md-level = "2" aria-labelledby = "__nav_8_11_label" aria-expanded = "false" >
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< label class = "md-nav__title" for = "__nav_8_11" >
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< span class = "md-nav__icon md-icon" > < / span >
Docker
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/Docker/u_e-docker-cust_dockerfiles/" class = "md-nav__link" >
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Customize Dockerfiles
< / a >
< / li >
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< / ul >
< / nav >
< / li >
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2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/u_e-why_unbound/" class = "md-nav__link" >
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Why unbound?
< / a >
< / li >
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2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/u_e-autodiscover_config/" class = "md-nav__link" >
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Autodiscover / Autoconfig
< / a >
< / li >
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2021-09-23 20:30:54 +02:00
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< li class = "md-nav__item" >
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< a href = "../../manual-guides/u_e-80_to_443/" class = "md-nav__link" >
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Redirect HTTP to HTTPS
< / a >
< / li >
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2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../manual-guides/u_e-reeanble-weak-protocols/" class = "md-nav__link" >
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Re-enable TLS 1.0 and TLS 1.1
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
2021-07-31 00:21:29 +02:00
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2021-07-31 00:21:29 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../manual-guides/u_e-update-hooks/" class = "md-nav__link" >
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Run scripts before and after updates
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-07-31 00:21:29 +02:00
2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_9" >
2021-09-23 20:30:54 +02:00
2023-01-08 16:57:17 +01:00
2023-01-28 17:53:25 +01:00
< label class = "md-nav__link" for = "__nav_9" id = "__nav_9_label" tabindex = "0" >
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Client Configuration
< span class = "md-nav__icon md-icon" > < / span >
< / label >
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< nav class = "md-nav" data-md-level = "1" aria-labelledby = "__nav_9_label" aria-expanded = "false" >
2021-04-01 12:20:45 +02:00
< label class = "md-nav__title" for = "__nav_9" >
< span class = "md-nav__icon md-icon" > < / span >
Client Configuration
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../client/client/" class = "md-nav__link" >
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Overview
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
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< a href = "../../client/client-android/" class = "md-nav__link" >
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Android
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-apple/" class = "md-nav__link" >
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Apple macOS / iOS
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-emclient/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
eM Client
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-kontact/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
KDE Kontact
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-outlook/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Microsoft Outlook
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-thunderbird/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Mozilla Thunderbird
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-windows/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Windows Mail
< / a >
< / li >
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
2021-09-23 20:30:54 +02:00
2021-04-01 12:20:45 +02:00
< li class = "md-nav__item" >
2022-02-04 14:27:16 +01:00
< a href = "../../client/client-manual/" class = "md-nav__link" >
2021-04-01 12:20:45 +02:00
Manual configuration
< / a >
< / li >
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2021-04-01 12:20:45 +02:00
< / ul >
< / nav >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
2021-09-23 20:30:54 +02:00
2023-01-28 17:53:25 +01:00
< input class = "md-nav__toggle md-toggle " type = "checkbox" id = "__nav_10" >
2023-01-08 16:57:17 +01:00
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Third party apps
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Borgmatic Backup
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< / li >
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CheckMK
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Exchange Hybrid Setup
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Gitea
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Gogs
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Mailman 3
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Mailpiler Integration
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Nextcloud
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Portainer
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Roundcube
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References
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< a href = "#reverse-dns-of-your-ip-address" class = "md-nav__link" >
Reverse DNS of your IP address
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< a href = "#the-minimal-dns-configuration" class = "md-nav__link" >
The minimal DNS configuration
< / a >
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< a href = "#dkim-spf-and-dmarc" class = "md-nav__link" >
DKIM, SPF and DMARC
< / a >
< / li >
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< a href = "#the-advanced-dns-configuration" class = "md-nav__link" >
The advanced DNS configuration
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Testing
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Misc
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Optional DMARC Statistics
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Email test for SPF, DKIM and DMARC:
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< / a >
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< li class = "md-nav__item" >
< a href = "#fully-qualified-domain-name-fqdn" class = "md-nav__link" >
Fully Qualified Domain Name (FQDN)
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< h1 > DNS setup< / h1 >
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< p > Below you can find a list of < strong > recommended DNS records< / strong > . While some are mandatory for a mail server (A, MX), others are recommended to build a good reputation score (TXT/SPF) or used for auto-configuration of mail clients (SRV).< / p >
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< h2 id = "references" > References< a class = "headerlink" href = "#references" title = "Permanent link" > ¶ < / a > < / h2 >
< ul >
< li > A good article covering all relevant topics:
< a href = "https://www.rackaid.com/blog/email-dns-records" > "3 DNS Records Every Email Marketer Must Know"< / a > < / li >
< li > Another great one, but Zimbra as an example platform:
< a href = "https://wiki.zimbra.com/wiki/Best_Practices_on_Email_Protection:_SPF,_DKIM_and_DMARC" > "Best Practices on Email Protection: SPF, DKIM and DMARC"< / a > < / li >
< li > An in-depth discussion of SPF, DKIM and DMARC:
< a href = "https://www.skelleton.net/2015/03/21/how-to-eliminate-spam-and-protect-your-name-with-dmarc/" > "How to eliminate spam and protect your name with DMARC"< / a > < / li >
< li > A thorough guide on understanding DMARC:
< a href = "https://seanthegeek.net/459/demystifying-dmarc/" > "Demystifying DMARC: A guide to preventing email spoofing"< / a > < / li >
< / ul >
< h2 id = "reverse-dns-of-your-ip-address" > Reverse DNS of your IP address< a class = "headerlink" href = "#reverse-dns-of-your-ip-address" title = "Permanent link" > ¶ < / a > < / h2 >
< p > Make sure that the PTR record of your IP address matches the FQDN of your mailcow host: < code > ${MAILCOW_HOSTNAME}< / code > < sup id = "fnref:1" > < a class = "footnote-ref" href = "#fn:1" > 1< / a > < / sup > . This record is usually set at the provider you leased the IP address (server) from.< / p >
< h2 id = "the-minimal-dns-configuration" > The minimal DNS configuration< a class = "headerlink" href = "#the-minimal-dns-configuration" title = "Permanent link" > ¶ < / a > < / h2 >
< p > This example shows you a set of records for one domain managed by mailcow. Each domain that is added to mailcow needs at least this set of records to function correctly.< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > # Name Type Value
mail IN A 1.2.3.4
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autodiscover IN CNAME mail.example.org. (your ${MAILCOW_HOSTNAME})
autoconfig IN CNAME mail.example.org. (your ${MAILCOW_HOSTNAME})
@ IN MX 10 mail.example.org. (your ${MAILCOW_HOSTNAME})
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< / code > < / pre > < / div >
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< p > < strong > Note:< / strong > The < code > mail< / code > DNS record which binds the subdomain to the given ip address must only be set for the domain on which mailcow is running and that is used to access the web interface. For every other mailcow managed domain, the < code > MX< / code > record will route the traffic.< / p >
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< h2 id = "dkim-spf-and-dmarc" > DKIM, SPF and DMARC< a class = "headerlink" href = "#dkim-spf-and-dmarc" title = "Permanent link" > ¶ < / a > < / h2 >
< p > In the example DNS zone file snippet below, a simple < strong > SPF< / strong > TXT record is used to only allow THIS server (the MX) to send mail for your domain. Every other server is disallowed but able to ("< code > ~all< / code > "). Please refer to < a href = "http://www.open-spf.org/" > SPF Project< / a > for further reading.< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > # Name Type Value
@ IN TXT " v=spf1 mx a -all"
< / code > < / pre > < / div >
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< p > It is highly recommended to create a < strong > DKIM< / strong > TXT record in your mailcow UI and set the corresponding TXT record in your DNS records. Please refer to < a href = "http://www.opendkim.org" > OpenDKIM< / a > for further reading.< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > # Name Type Value
dkim._domainkey IN TXT " v=DKIM1; k=rsa; t=s; s=email; p=..."
< / code > < / pre > < / div >
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< p > The last step in protecting yourself and others is the implementation of a < strong > DMARC< / strong > TXT record, for example by using the < a href = "http://www.kitterman.com/dmarc/assistant.html" > DMARC Assistant< / a > (< a href = "https://dmarcian.com/dmarc-inspector/google.com" > check< / a > ).< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > # Name Type Value
_dmarc IN TXT " v=DMARC1; p=reject; rua=mailto:mailauth-reports@example.org"
< / code > < / pre > < / div >
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< h2 id = "the-advanced-dns-configuration" > The advanced DNS configuration< a class = "headerlink" href = "#the-advanced-dns-configuration" title = "Permanent link" > ¶ < / a > < / h2 >
< p > < strong > SRV< / strong > records specify the server(s) for a specific protocol on your domain. If you want to explicitly announce a service as not provided, give "." as the target address (instead of "mail.example.org."). Please refer to < a href = "https://tools.ietf.org/html/rfc2782" > RFC 2782< / a > .< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > # Name Type Priority Weight Port Value
_autodiscover._tcp IN SRV 0 1 443 mail.example.org. (your ${MAILCOW_HOSTNAME})
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_caldavs._tcp IN SRV 0 1 443 mail.example.org. (your ${MAILCOW_HOSTNAME})
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_caldavs._tcp IN TXT " path=/SOGo/dav/"
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_carddavs._tcp IN SRV 0 1 443 mail.example.org. (your ${MAILCOW_HOSTNAME})
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_carddavs._tcp IN TXT " path=/SOGo/dav/"
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_imap._tcp IN SRV 0 1 143 mail.example.org. (your ${MAILCOW_HOSTNAME})
_imaps._tcp IN SRV 0 1 993 mail.example.org. (your ${MAILCOW_HOSTNAME})
_pop3._tcp IN SRV 0 1 110 mail.example.org. (your ${MAILCOW_HOSTNAME})
_pop3s._tcp IN SRV 0 1 995 mail.example.org. (your ${MAILCOW_HOSTNAME})
_sieve._tcp IN SRV 0 1 4190 mail.example.org. (your ${MAILCOW_HOSTNAME})
_smtps._tcp IN SRV 0 1 465 mail.example.org. (your ${MAILCOW_HOSTNAME})
_submission._tcp IN SRV 0 1 587 mail.example.org. (your ${MAILCOW_HOSTNAME})
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< / code > < / pre > < / div >
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< h2 id = "testing" > Testing< a class = "headerlink" href = "#testing" title = "Permanent link" > ¶ < / a > < / h2 >
< p > Here are some tools you can use to verify your DNS configuration:< / p >
< ul >
< li > < a href = "https://mxtoolbox.com/SuperTool.aspx" > MX Toolbox< / a > (DNS, SMTP, RBL)< / li >
< li > < a href = "https://www.port25.com/dkim-wizard/" > port25.com< / a > (DKIM, SPF)< / li >
< li > < a href = "https://www.mail-tester.com/" > Mail-tester< / a > (DKIM, DMARC, SPF)< / li >
< li > < a href = "https://www.dmarcanalyzer.com/spf/checker/" > DMARC Analyzer< / a > (DMARC, SPF)< / li >
< li > < a href = "http://multirbl.valli.org/" > MultiRBL.valli.org< / a > (DNSBL, RBL, FCrDNS)< / li >
< / ul >
< h2 id = "misc" > Misc< a class = "headerlink" href = "#misc" title = "Permanent link" > ¶ < / a > < / h2 >
< h3 id = "optional-dmarc-statistics" > Optional DMARC Statistics< a class = "headerlink" href = "#optional-dmarc-statistics" title = "Permanent link" > ¶ < / a > < / h3 >
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< p > If you are interested in statistics, you can additionally register with some of the many below DMARC statistic services - or self-host your own.< / p >
< div class = "admonition tip" >
< p class = "admonition-title" > Tip< / p >
< p > It is worth considering that if you request DMARC statistic reports to your mailcow server and your mailcow server is not configured correctly to receive these reports, you may not get accurate and complete results. Please consider using an alternative email domain for receiving DMARC reports.< / p >
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< / div >
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< p > It is worth mentioning, that the following suggestions are not a comprehensive list of all services and tools available, but only a small few of the many choices.< / p >
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< ul >
< li > < a href = "https://gmail.com/postmaster" > Postmaster Tool< / a > < / li >
< li > < a href = "https://github.com/domainaware/parsedmarc" > parsedmarc< / a > (self-hosted)< / li >
< li > < a href = "https://fraudmarc.com/" > Fraudmarc< / a > < / li >
< li > < a href = "https://dmarc.postmarkapp.com" > Postmark< / a > < / li >
< li > < a href = "https://dmarcian.com/" > Dmarcian< / a > < / li >
< / ul >
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< div class = "admonition tip" >
< p class = "admonition-title" > Tip< / p >
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< p > These services may provide you with a TXT record you need to insert into your DNS records as the provider specifies. Please ensure you read the provider's documentation from the service you choose as this process may vary.< / p >
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< / div >
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< h3 id = "email-test-for-spf-dkim-and-dmarc" > Email test for SPF, DKIM and DMARC:< a class = "headerlink" href = "#email-test-for-spf-dkim-and-dmarc" title = "Permanent link" > ¶ < / a > < / h3 >
< p > To run a rudimentary email authentication check, send a mail to < code > check-auth at verifier.port25.com< / code > and wait for a reply. You will find a report similar to the following:< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > ==========================================================
Summary of Results
==========================================================
SPF check: pass
" iprev" check: pass
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DKIM check: pass
DKIM check: pass
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SpamAssassin check: ham
==========================================================
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Details:
==========================================================
....
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< / code > < / pre > < / div >
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< p > The full report will contain more technical details.< / p >
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< h3 id = "fully-qualified-domain-name-fqdn" > Fully Qualified Domain Name (FQDN)< a class = "headerlink" href = "#fully-qualified-domain-name-fqdn" title = "Permanent link" > ¶ < / a > < / h3 >
< div class = "footnote" >
< hr / >
< ol >
< li id = "fn:1" >
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< p > A < strong > Fully Qualified Domain Name< / strong > (< strong > FQDN< / strong > ) is the complete (absolute) domain name for a specific computer or host, on the Internet. The FQDN consists of at least three parts divided by a dot: the hostname, the domain name, and the Top Level Domain (< strong > TLD< / strong > for short). In the example of < code > mx.mailcow.email< / code > the hostname would be < code > mx< / code > , the domain name < code > mailcow< / code > and the TLD < code > email< / code > .  < a class = "footnote-backref" href = "#fnref:1" title = "Jump back to footnote 1 in the text" > ↩ < / a > < / p >
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< a href = "https://github.com/mailcow" target = "_blank" rel = "noopener" title = "github.com" class = "md-social__link" >
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< svg xmlns = "http://www.w3.org/2000/svg" viewBox = "0 0 480 512" > <!-- ! Font Awesome Free 6.4.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc. --> < path d = "M186.1 328.7c0 20.9-10.9 55.1-36.7 55.1s-36.7-34.2-36.7-55.1 10.9-55.1 36.7-55.1 36.7 34.2 36.7 55.1zM480 278.2c0 31.9-3.2 65.7-17.5 95-37.9 76.6-142.1 74.8-216.7 74.8-75.8 0-186.2 2.7-225.6-74.8-14.6-29-20.2-63.1-20.2-95 0-41.9 13.9-81.5 41.5-113.6-5.2-15.8-7.7-32.4-7.7-48.8 0-21.5 4.9-32.3 14.6-51.8 45.3 0 74.3 9 108.8 36 29-6.9 58.8-10 88.7-10 27 0 54.2 2.9 80.4 9.2 34-26.7 63-35.2 107.8-35.2 9.8 19.5 14.6 30.3 14.6 51.8 0 16.4-2.6 32.7-7.7 48.2 27.5 32.4 39 72.3 39 114.2zm-64.3 50.5c0-43.9-26.7-82.6-73.5-82.6-18.9 0-37 3.4-56 6-14.9 2.3-29.8 3.2-45.1 3.2-15.2 0-30.1-.9-45.1-3.2-18.7-2.6-37-6-56-6-46.8 0-73.5 38.7-73.5 82.6 0 87.8 80.4 101.3 150.4 101.3h48.2c70.3 0 150.6-13.4 150.6-101.3zm-82.6-55.1c-25.8 0-36.7 34.2-36.7 55.1s10.9 55.1 36.7 55.1 36.7-34.2 36.7-55.1-10.9-55.1-36.7-55.1z" / > < / svg >
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< script id = "__config" type = "application/json" > { "base" : "../../.." , "features" : [ "navigation.top" , "navigation.tracking" , "announce.dismiss" , "content.tabs.link" , "search.share" , "search.highlight" ] , "search" : "../../../assets/javascripts/workers/search.208ed371.min.js" , "translations" : { "clipboard.copied" : "Copied to clipboard" , "clipboard.copy" : "Copy to clipboard" , "search.result.more.one" : "1 more on this page" , "search.result.more.other" : "# more on this page" , "search.result.none" : "No matching documents" , "search.result.one" : "1 matching document" , "search.result.other" : "# matching documents" , "search.result.placeholder" : "Type to start searching" , "search.result.term.missing" : "Missing" , "select.version" : "Select version" } } < / script >
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< / body >
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