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Prerequisites
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Prerequisites
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Prepare your system
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Prepare your system
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Minimum System Resources
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RAM usage examples
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Hetzner Cloud (and probably others)
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DNS setup
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|
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Installation, Update & Migration
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../i_u_m/i_u_m_install/" class="md-nav__link">
|
||
Installation
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../i_u_m/i_u_m_update/" class="md-nav__link">
|
||
Update
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../i_u_m/i_u_m_migration/" class="md-nav__link">
|
||
Migration
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../i_u_m/i_u_m_deinstall/" class="md-nav__link">
|
||
Deinstallation
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_4" type="checkbox" id="__nav_4" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_4">
|
||
Post Installation Tasks
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Post Installation Tasks" data-md-level="1">
|
||
<label class="md-nav__title" for="__nav_4">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Post Installation Tasks
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-ssl/" class="md-nav__link">
|
||
Advanced SSL
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-disable_ipv6/" class="md-nav__link">
|
||
Disable IPv6
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-dmarc_reporting/" class="md-nav__link">
|
||
DMARC Reporting
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-ip_bindings/" class="md-nav__link">
|
||
IP bindings
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-local_mta/" class="md-nav__link">
|
||
Local MTA on Docker host
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-logging/" class="md-nav__link">
|
||
Logging
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-rp/" class="md-nav__link">
|
||
Reverse Proxy
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-rspamd_ui/" class="md-nav__link">
|
||
Rspamd UI
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-snat/" class="md-nav__link">
|
||
SNAT
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../post_installation/firststeps-sync_jobs_migration/" class="md-nav__link">
|
||
Sync job migration
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_5" type="checkbox" id="__nav_5" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_5">
|
||
Models
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Models" data-md-level="1">
|
||
<label class="md-nav__title" for="__nav_5">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Models
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../models/model-acl/" class="md-nav__link">
|
||
ACL
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../models/model-passwd/" class="md-nav__link">
|
||
Password hashing
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../models/model-sender_rcv/" class="md-nav__link">
|
||
Sender and receiver model
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6" type="checkbox" id="__nav_6" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_6">
|
||
General Troubleshooting
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="General Troubleshooting" data-md-level="1">
|
||
<label class="md-nav__title" for="__nav_6">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
General Troubleshooting
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug/" class="md-nav__link">
|
||
Introduction
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-admin_login_sogo/" class="md-nav__link">
|
||
Admin login to SOGo
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-rspamd_memory_leaks/" class="md-nav__link">
|
||
Advanced: Find memory leaks in Rspamd
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-attach_service/" class="md-nav__link">
|
||
Attach to a Container
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-common_problems/" class="md-nav__link">
|
||
Common Problems
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-logs/" class="md-nav__link">
|
||
Logs
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-mysql_upgrade/" class="md-nav__link">
|
||
Manual MySQL upgrade
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-mysql_aria/" class="md-nav__link">
|
||
Recover crashed Aria storage engine
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-rm_volumes/" class="md-nav__link">
|
||
Remove Persistent Data
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-reset_pw/" class="md-nav__link">
|
||
Reset Passwords (incl. SQL)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../troubleshooting/debug-reset_tls/" class="md-nav__link">
|
||
Reset TLS certificates
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7" type="checkbox" id="__nav_7" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_7">
|
||
Backup & Restore
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Backup & Restore" data-md-level="1">
|
||
<label class="md-nav__title" for="__nav_7">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Backup & Restore
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7_1" type="checkbox" id="__nav_7_1" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_7_1">
|
||
Component backup & restore
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Component backup & restore" data-md-level="2">
|
||
<label class="md-nav__title" for="__nav_7_1">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Component backup & restore
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../backup_restore/b_n_r-backup/" class="md-nav__link">
|
||
Backup
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../backup_restore/b_n_r-restore/" class="md-nav__link">
|
||
Restore
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../backup_restore/b_n_r-coldstandby/" class="md-nav__link">
|
||
Cold-standby (rolling backup)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7_3" type="checkbox" id="__nav_7_3" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_7_3">
|
||
Manual backups
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Manual backups" data-md-level="2">
|
||
<label class="md-nav__title" for="__nav_7_3">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Manual backups
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../backup_restore/b_n_r-backup_restore-maildir/" class="md-nav__link">
|
||
Maildir
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../backup_restore/b_n_r-backup_restore-mysql/" class="md-nav__link">
|
||
MySQL (mysqldump)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7_4" type="checkbox" id="__nav_7_4" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_7_4">
|
||
mailcow-internal backups
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="mailcow-internal backups" data-md-level="2">
|
||
<label class="md-nav__title" for="__nav_7_4">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
mailcow-internal backups
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../backup_restore/b_n_r-accidental_deletion/" class="md-nav__link">
|
||
Recover accidentally deleted data
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8" type="checkbox" id="__nav_8" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8">
|
||
Manual/Guides/Examples
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Manual/Guides/Examples" data-md-level="1">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_1" type="checkbox" id="__nav_8_1" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_1">
|
||
mailcow UI
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="mailcow UI" data-md-level="2">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-bl_wl/" class="md-nav__link">
|
||
Blacklist / Whitelist
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-config/" class="md-nav__link">
|
||
Configuration
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-css/" class="md-nav__link">
|
||
CSS overrides
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-netfilter/" class="md-nav__link">
|
||
Netfilter
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-pushover/" class="md-nav__link">
|
||
Pushover
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-spamfilter/" class="md-nav__link">
|
||
Spamfilter
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<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)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-spamalias/" class="md-nav__link">
|
||
Temporary email aliases
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-tfa/" class="md-nav__link">
|
||
Two-Factor Authentication
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/mailcow-UI/u_e-mailcow_ui-fido/" class="md-nav__link">
|
||
WebAuthn / FIDO2
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_2" type="checkbox" id="__nav_8_2" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_2">
|
||
Postfix
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Postfix" data-md-level="2">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-trust_networks/" class="md-nav__link">
|
||
Add trusted networks
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-custom_transport/" class="md-nav__link">
|
||
Custom transport maps
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-extra_cf/" class="md-nav__link">
|
||
Customize/Expand main.cf
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-disable_sender_verification/" class="md-nav__link">
|
||
Disable Sender Addresses Verification
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-attachment_size/" class="md-nav__link">
|
||
Max. message size (attachment size)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-relayhost/" class="md-nav__link">
|
||
Relayhosts
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-pflogsumm/" class="md-nav__link">
|
||
Statistics with pflogsumm
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Postfix/u_e-postfix-postscreen_whitelist/" class="md-nav__link">
|
||
Whitelist IP in Postscreen
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_3" type="checkbox" id="__nav_8_3" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_3">
|
||
Unbound
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Unbound" data-md-level="2">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Unbound/u_e-unbound-fwd/" class="md-nav__link">
|
||
Using an external DNS service
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_4" type="checkbox" id="__nav_8_4" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_4">
|
||
Dovecot
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Dovecot" data-md-level="2">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-extra_conf/" class="md-nav__link">
|
||
Customize/Expand dovecot.conf
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-any_acl/" class="md-nav__link">
|
||
Enable "any" ACL settings
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-expunge/" class="md-nav__link">
|
||
Expunge a Users mails
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-fts/" class="md-nav__link">
|
||
FTS (Solr)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-idle_interval/" class="md-nav__link">
|
||
IMAP IDLE interval
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-mail-crypt/" class="md-nav__link">
|
||
Mail crypt
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-more/" class="md-nav__link">
|
||
More Examples with DOVEADM
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-vmail-volume/" class="md-nav__link">
|
||
Move Maildir (vmail)
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-public_folder/" class="md-nav__link">
|
||
Public folders
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-static_master/" class="md-nav__link">
|
||
Static master user
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Dovecot/u_e-dovecot-catchall_vacation/" class="md-nav__link">
|
||
Vacation replies for catchall addresses
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_5" type="checkbox" id="__nav_8_5" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_5">
|
||
Nginx
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Nginx" data-md-level="2">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Nginx/u_e-nginx_webmail-site/" class="md-nav__link">
|
||
Create subdomain webmail.example.org
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Nginx/u_e-nginx_custom/" class="md-nav__link">
|
||
Custom sites
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_6" type="checkbox" id="__nav_8_6" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_6">
|
||
Watchdog
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Watchdog" data-md-level="2">
|
||
<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">
|
||
<a href="../../manual-guides/Watchdog/u_e-watchdog-thresholds/" class="md-nav__link">
|
||
Thresholds
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Redis/u_e-redis/" class="md-nav__link">
|
||
Redis
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Rspamd/u_e-rspamd/" class="md-nav__link">
|
||
Rspamd
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_9" type="checkbox" id="__nav_8_9" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_9">
|
||
ClamAV
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="ClamAV" data-md-level="2">
|
||
<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">
|
||
<a href="../../manual-guides/SOGo/u_e-sogo/" class="md-nav__link">
|
||
SOGo
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
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|
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|
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8_11" type="checkbox" id="__nav_8_11" >
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_8_11">
|
||
Docker
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" aria-label="Docker" data-md-level="2">
|
||
<label class="md-nav__title" for="__nav_8_11">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Docker
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Docker/u_e-docker-cust_dockerfiles/" class="md-nav__link">
|
||
Customize Dockerfiles
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/Docker/u_e-docker-dc_bash_compl/" class="md-nav__link">
|
||
Docker Compose Bash Completion
|
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</a>
|
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</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
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|
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|
||
|
||
|
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|
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|
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|
||
|
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<li class="md-nav__item">
|
||
<a href="../../manual-guides/u_e-why_unbound/" class="md-nav__link">
|
||
Why unbound?
|
||
</a>
|
||
</li>
|
||
|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/u_e-autodiscover_config/" class="md-nav__link">
|
||
Autodiscover / Autoconfig
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/u_e-80_to_443/" class="md-nav__link">
|
||
Redirect HTTP to HTTPS
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../manual-guides/u_e-update-hooks/" class="md-nav__link">
|
||
Run scripts before and after updates
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
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|
||
|
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|
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|
||
|
||
|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
|
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|
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_9" type="checkbox" id="__nav_9" >
|
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|
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|
||
|
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|
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<label class="md-nav__link" for="__nav_9">
|
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Client Configuration
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
||
|
||
<nav class="md-nav" aria-label="Client Configuration" data-md-level="1">
|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client/" class="md-nav__link">
|
||
Overview
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-android/" class="md-nav__link">
|
||
Android
|
||
</a>
|
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</li>
|
||
|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-apple/" class="md-nav__link">
|
||
Apple macOS / iOS
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-emclient/" class="md-nav__link">
|
||
eM Client
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-kontact/" class="md-nav__link">
|
||
KDE Kontact
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-outlook/" class="md-nav__link">
|
||
Microsoft Outlook
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-thunderbird/" class="md-nav__link">
|
||
Mozilla Thunderbird
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-windows/" class="md-nav__link">
|
||
Windows Mail
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../client/client-manual/" class="md-nav__link">
|
||
Manual configuration
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
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|
||
|
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|
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|
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|
||
|
||
|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
|
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|
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|
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_10" type="checkbox" id="__nav_10" >
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|
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|
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|
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|
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<label class="md-nav__link" for="__nav_10">
|
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Third party apps
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
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<nav class="md-nav" aria-label="Third party apps" data-md-level="1">
|
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<label class="md-nav__title" for="__nav_10">
|
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<span class="md-nav__icon md-icon"></span>
|
||
Third party apps
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-borgmatic/" class="md-nav__link">
|
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Borgmatic Backup
|
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</a>
|
||
</li>
|
||
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|
||
|
||
|
||
|
||
|
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|
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|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-exchange_onprem/" class="md-nav__link">
|
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Exchange Hybrid Setup
|
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</a>
|
||
</li>
|
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|
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|
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|
||
|
||
|
||
|
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|
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|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-gitea/" class="md-nav__link">
|
||
Gitea
|
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</a>
|
||
</li>
|
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|
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|
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|
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|
||
|
||
|
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|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-gogs/" class="md-nav__link">
|
||
Gogs
|
||
</a>
|
||
</li>
|
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|
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|
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|
||
|
||
|
||
|
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|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-mailman3/" class="md-nav__link">
|
||
Mailman 3
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-mailpiler_integration/" class="md-nav__link">
|
||
Mailpiler Integration
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-nextcloud/" class="md-nav__link">
|
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Nextcloud
|
||
</a>
|
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</li>
|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-portainer/" class="md-nav__link">
|
||
Portainer
|
||
</a>
|
||
</li>
|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../third_party/third_party-roundcube/" class="md-nav__link">
|
||
Roundcube
|
||
</a>
|
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</li>
|
||
|
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|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</li>
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
||
<div class="md-sidebar__scrollwrap">
|
||
<div class="md-sidebar__inner">
|
||
|
||
|
||
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__title" for="__toc">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Table of contents
|
||
</label>
|
||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#minimum-system-resources" class="md-nav__link">
|
||
Minimum System Resources
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Minimum System Resources">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#ram-usage-examples" class="md-nav__link">
|
||
RAM usage examples
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#supported-os" class="md-nav__link">
|
||
Supported OS
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#firewall-ports" class="md-nav__link">
|
||
Firewall & Ports
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Firewall & Ports">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#default-ports" class="md-nav__link">
|
||
Default Ports
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#important-for-hetzner-firewalls" class="md-nav__link">
|
||
Important for Hetzner firewalls
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#date-and-time" class="md-nav__link">
|
||
Date and Time
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#hetzner-cloud-and-probably-others" class="md-nav__link">
|
||
Hetzner Cloud (and probably others)
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#mtu" class="md-nav__link">
|
||
MTU
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
<div class="md-content" data-md-component="content">
|
||
<article class="md-content__inner md-typeset">
|
||
|
||
|
||
<a href="https://github.com/mailcow/mailcow-dockerized-docs/edit/master/docs/prerequisite/prerequisite-system.en.md" title="Edit this page" class="md-content__button md-icon">
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25Z"/></svg>
|
||
</a>
|
||
|
||
|
||
|
||
<h1>Prepare your system</h1>
|
||
|
||
<p>Before you run <strong>mailcow: dockerized</strong>, there are a few requirements that you should check:</p>
|
||
<div class="admonition warning">
|
||
<p class="admonition-title">Warning</p>
|
||
<p>Do <strong>not</strong> try to install mailcow on a Synology/QNAP device (any NAS), OpenVZ, LXC or other container platforms. KVM, ESX, Hyper-V and other full virtualization platforms are supported.</p>
|
||
</div>
|
||
<div class="admonition info">
|
||
<p class="admonition-title">Info</p>
|
||
<ul>
|
||
<li>mailcow: dockerized requires <a href="#default-ports">some ports</a> to be open for incoming connections, so make sure that your firewall is not blocking these.</li>
|
||
<li>Make sure that no other application is interfering with mailcow's configuration, such as another mail service</li>
|
||
<li>A correct DNS setup is crucial to every good mailserver setup, so please make sure you got at least the <a href="../prerequisite-dns/#the-minimal-dns-configuration">basics</a> covered before you begin!</li>
|
||
<li>Make sure that your system has a correct date and <a href="#date-and-time">time setup</a>. This is crucial for various components like two factor TOTP authentication.</li>
|
||
</ul>
|
||
</div>
|
||
<h2 id="minimum-system-resources">Minimum System Resources<a class="headerlink" href="#minimum-system-resources" title="Permanent link">¶</a></h2>
|
||
<div class="admonition failure">
|
||
<p class="admonition-title">Not supported</p>
|
||
<p><strong>OpenVZ, Virtuozzo and LXC</strong></p>
|
||
</div>
|
||
<p>Please make sure that your system has at least the following resources:</p>
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Resource</th>
|
||
<th>mailcow: dockerized</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>CPU</td>
|
||
<td>1 GHz</td>
|
||
</tr>
|
||
<tr>
|
||
<td>RAM</td>
|
||
<td><strong>Minimum</strong> 6 GiB + 1 GiB swap (default config)</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Disk</td>
|
||
<td>20 GiB (without emails)</td>
|
||
</tr>
|
||
<tr>
|
||
<td>System Type</td>
|
||
<td>x86_64</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>ClamAV and Solr can be greedy with RAM. You may disable them in <code>mailcow.conf</code> by settings <code>SKIP_CLAMD=y</code> and <code>SKIP_SOLR=y</code>.</p>
|
||
<div class="admonition info">
|
||
<p class="admonition-title">Info</p>
|
||
<p>We are aware that a pure MTA can run on 128 MiB RAM. mailcow is a full-grown and ready-to-use groupware with many extras making life easier. mailcow comes with a webserver, webmailer, ActiveSync (MS), antivirus, antispam, indexing (Solr), document scanner (Oletools), SQL (MariaDB), Cache (Redis), MDA, MTA, various web services etc.</p>
|
||
</div>
|
||
<p>A single SOGo worker <strong>can</strong> acquire ~350 MiB RAM before it gets purged. The more ActiveSync connections you plan to use, the more RAM you will need. A default configuration spawns 20 workers.</p>
|
||
<h4 id="ram-usage-examples">RAM usage examples<a class="headerlink" href="#ram-usage-examples" title="Permanent link">¶</a></h4>
|
||
<p>A company with 15 phones (EAS enabled) and about 50 concurrent IMAP connections should plan 16 GiB RAM.</p>
|
||
<p>6 GiB RAM + 1 GiB swap are fine for most private installations while 8 GiB RAM are recommended for ~5 to 10 users.</p>
|
||
<p>We can help to correctly plan your setup as part of our support.</p>
|
||
<h3 id="supported-os">Supported OS<a class="headerlink" href="#supported-os" title="Permanent link">¶</a></h3>
|
||
<p>We recommend using any distribution listed as supported by Docker CE (check <a href="https://docs.docker.com/install/">https://docs.docker.com/install/</a>).</p>
|
||
<p>See the following table for the official supported and tested destributions:</p>
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>OS</th>
|
||
<th>Status</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Centos 7</td>
|
||
<td>âś…</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Debian 10, 11</td>
|
||
<td>âś…</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Ubuntu 18.04, 20.04, 22.04</td>
|
||
<td>âś…</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p><strong>Other Distributions may work as well but weren´t tested by us!</strong></p>
|
||
<h2 id="firewall-ports">Firewall & Ports<a class="headerlink" href="#firewall-ports" title="Permanent link">¶</a></h2>
|
||
<p>Please check if any of mailcow's standard ports are open and not in use by other applications:</p>
|
||
<div class="highlight"><pre><span></span><code>ss -tlpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190'
|
||
# or:
|
||
netstat -tulpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190'
|
||
</code></pre></div>
|
||
<div class="admonition danger">
|
||
<p class="admonition-title">Danger</p>
|
||
<p>There are several problems with running mailcow on a firewalld/ufw enabled system. <br>
|
||
You should disable it (if possible) and move your ruleset to the DOCKER-USER chain, which is not cleared by a Docker service restart, instead. <br>
|
||
See <a href="https://blog.donnex.net/docker-and-iptables-filtering/">this (blog.donnex.net)</a> or <a href="https://unrouted.io/2017/08/15/docker-firewall/">this (unrouted.io)</a> guide for information about how to use iptables-persistent with the DOCKER-USER chain.<br>
|
||
As mailcow runs dockerized, INPUT rules have no effect on restricting access to mailcow. <br>
|
||
Use the FORWARD chain instead.<br></p>
|
||
</div>
|
||
<p>If this command returns any results please remove or stop the application running on that port. You may also adjust mailcows ports via the <code>mailcow.conf</code> configuration file.</p>
|
||
<h3 id="default-ports">Default Ports<a class="headerlink" href="#default-ports" title="Permanent link">¶</a></h3>
|
||
<p>If you have a firewall in front of mailcow, please make sure that these ports are open for incoming connections:</p>
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Service</th>
|
||
<th align="center">Protocol</th>
|
||
<th align="left">Port</th>
|
||
<th align="left">Container</th>
|
||
<th>Variable</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Postfix SMTP</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">25</td>
|
||
<td align="left">postfix-mailcow</td>
|
||
<td><code>${SMTP_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Postfix SMTPS</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">465</td>
|
||
<td align="left">postfix-mailcow</td>
|
||
<td><code>${SMTPS_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Postfix Submission</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">587</td>
|
||
<td align="left">postfix-mailcow</td>
|
||
<td><code>${SUBMISSION_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Dovecot IMAP</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">143</td>
|
||
<td align="left">dovecot-mailcow</td>
|
||
<td><code>${IMAP_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Dovecot IMAPS</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">993</td>
|
||
<td align="left">dovecot-mailcow</td>
|
||
<td><code>${IMAPS_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Dovecot POP3</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">110</td>
|
||
<td align="left">dovecot-mailcow</td>
|
||
<td><code>${POP_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Dovecot POP3S</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">995</td>
|
||
<td align="left">dovecot-mailcow</td>
|
||
<td><code>${POPS_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Dovecot ManageSieve</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">4190</td>
|
||
<td align="left">dovecot-mailcow</td>
|
||
<td><code>${SIEVE_PORT}</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>HTTP(S)</td>
|
||
<td align="center">TCP</td>
|
||
<td align="left">80/443</td>
|
||
<td align="left">nginx-mailcow</td>
|
||
<td><code>${HTTP_PORT}</code> / <code>${HTTPS_PORT}</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>To bind a service to an IP address, you can prepend the IP like this: <code>SMTP_PORT=1.2.3.4:25</code></p>
|
||
<p><strong>Important</strong>: You cannot use IP:PORT bindings in HTTP_PORT and HTTPS_PORT. Please use <code>HTTP_PORT=1234</code> and <code>HTTP_BIND=1.2.3.4</code> instead.</p>
|
||
<h3 id="important-for-hetzner-firewalls">Important for Hetzner firewalls<a class="headerlink" href="#important-for-hetzner-firewalls" title="Permanent link">¶</a></h3>
|
||
<p>Quoting <a href="https://github.com/chermsen">https://github.com/chermsen</a> via <a href="https://github.com/mailcow/mailcow-dockerized/issues/497#issuecomment-469847380">https://github.com/mailcow/mailcow-dockerized/issues/497#issuecomment-469847380</a> (THANK YOU!):</p>
|
||
<p>For all who are struggling with the Hetzner firewall:</p>
|
||
<p>Port 53 unimportant for the firewall configuration in this case. According to the documentation unbound uses the port range 1024-65535 for outgoing requests.
|
||
Since the Hetzner Robot Firewall is a static firewall (each incoming packet is checked isolated) - the following rules must be applied:</p>
|
||
<p><strong>For TCP</strong>
|
||
<div class="highlight"><pre><span></span><code>SRC-IP: ---
|
||
DST IP: ---
|
||
SRC Port: ---
|
||
DST Port: 1024-65535
|
||
Protocol: tcp
|
||
TCP flags: ack
|
||
Action: Accept
|
||
</code></pre></div></p>
|
||
<p><strong>For UDP</strong>
|
||
<div class="highlight"><pre><span></span><code>SRC-IP: ---
|
||
DST IP: ---
|
||
SRC Port: ---
|
||
DST Port: 1024-65535
|
||
Protocol: udp
|
||
Action: Accept
|
||
</code></pre></div></p>
|
||
<p>If you want to apply a more restrictive port range you have to change the config of unbound first (after installation):</p>
|
||
<p>{mailcow-dockerized}/data/conf/unbound/unbound.conf:
|
||
<div class="highlight"><pre><span></span><code>outgoing-port-avoid: 0-32767
|
||
</code></pre></div></p>
|
||
<p>Now the firewall rules can be adjusted as follows:</p>
|
||
<div class="highlight"><pre><span></span><code>[...]
|
||
DST Port: 32768-65535
|
||
[...]
|
||
</code></pre></div>
|
||
<h2 id="date-and-time">Date and Time<a class="headerlink" href="#date-and-time" title="Permanent link">¶</a></h2>
|
||
<p>To ensure that you have the correct date and time setup on your system, please check the output of <code>timedatectl status</code>:</p>
|
||
<div class="highlight"><pre><span></span><code>$ timedatectl status
|
||
Local time: Sat 2017-05-06 02:12:33 CEST
|
||
Universal time: Sat 2017-05-06 00:12:33 UTC
|
||
RTC time: Sat 2017-05-06 00:12:32
|
||
Time zone: Europe/Berlin (CEST, +0200)
|
||
NTP enabled: yes
|
||
NTP synchronized: yes
|
||
RTC in local TZ: no
|
||
DST active: yes
|
||
Last DST change: DST began at
|
||
Sun 2017-03-26 01:59:59 CET
|
||
Sun 2017-03-26 03:00:00 CEST
|
||
Next DST change: DST ends (the clock jumps one hour backwards) at
|
||
Sun 2017-10-29 02:59:59 CEST
|
||
Sun 2017-10-29 02:00:00 CET
|
||
</code></pre></div>
|
||
<p>The lines <code>NTP enabled: yes</code> and <code>NTP synchronized: yes</code> indicate whether you have NTP enabled and if it's synchronized.</p>
|
||
<p>To enable NTP you need to run the command <code>timedatectl set-ntp true</code>. You also need to edit your <code>/etc/systemd/timesyncd.conf</code>:</p>
|
||
<div class="highlight"><pre><span></span><code># vim /etc/systemd/timesyncd.conf
|
||
[Time]
|
||
NTP=0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org 3.pool.ntp.org
|
||
</code></pre></div>
|
||
<h2 id="hetzner-cloud-and-probably-others">Hetzner Cloud (and probably others)<a class="headerlink" href="#hetzner-cloud-and-probably-others" title="Permanent link">¶</a></h2>
|
||
<p>Check <code>/etc/network/interfaces.d/50-cloud-init.cfg</code> and change the IPv6 interface from eth0:0 to eth0:</p>
|
||
<div class="highlight"><pre><span></span><code># Wrong:
|
||
auto eth0:0
|
||
iface eth0:0 inet6 static
|
||
# Right:
|
||
auto eth0
|
||
iface eth0 inet6 static
|
||
</code></pre></div>
|
||
<p>Reboot or restart the interface.
|
||
You may want to <a href="https://wiki.hetzner.de/index.php/Cloud_IP_static/en#disable_cloud-init_network_changes">disable cloud-init network changes.</a></p>
|
||
<h2 id="mtu">MTU<a class="headerlink" href="#mtu" title="Permanent link">¶</a></h2>
|
||
<p>Especially relevant for OpenStack users: Check your MTU and set it accordingly in docker-compose.yml. See <strong>4.1</strong> in <a href="../../i_u_m/i_u_m_install/">our installation docs</a>.</p>
|
||
|
||
<hr>
|
||
<div class="md-source-file">
|
||
<small>
|
||
|
||
Last update:
|
||
<span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-iso_datetime">2022-04-27 15:41:08</span>
|
||
|
||
|
||
</small>
|
||
</div>
|
||
|
||
|
||
</article>
|
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|
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</div>
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<script src="../../../assets/javascripts/bundle.3a4b43e5.min.js"></script>
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