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< a href = "../u_e-fido2/" 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 = "../u_e-postfix-custom_transport/" class = "md-nav__link" >
Custom transport maps
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< / li >
< li class = "md-nav__item" >
< a href = "../u_e-postfix-postscreen_whitelist/" class = "md-nav__link" >
Whitelist IP in Postscreen
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-postfix-extra_cf/" class = "md-nav__link" >
Customize/Expand main.cf
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-postfix-disable_sender_verification/" class = "md-nav__link" >
Disable Sender Addresses Verification
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-postfix-attachment_size/" class = "md-nav__link" >
Max. message size (attachment size)
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-postfix-pflogsumm/" class = "md-nav__link" >
Statistics with pflogsumm
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< / li >
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< 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" >
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< 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 = "../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--active md-nav__item--nested" >
< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_8_4" type = "checkbox" id = "__nav_8_4" checked >
< 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 = "../u_e-dovecot-any_acl/" class = "md-nav__link" >
Enable "any" ACL settings
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-dovecot-expunge/" class = "md-nav__link" >
Expunge a Users mails
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-dovecot-extra_conf/" class = "md-nav__link" >
Customize/Expand dovecot.conf
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-dovecot-fts/" class = "md-nav__link" >
FTS (Solr)
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-dovecot-idle_interval/" class = "md-nav__link" >
IMAP IDLE interval
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "toc" type = "checkbox" id = "__toc" >
2021-04-20 22:16:43 +02:00
< label class = "md-nav__link md-nav__link--active" for = "__toc" >
Mail crypt
< span class = "md-nav__icon md-icon" > < / span >
< / label >
2021-04-01 12:20:45 +02:00
< a href = "./" class = "md-nav__link md-nav__link--active" >
Mail crypt
< / a >
2021-04-20 22:16:43 +02:00
< nav class = "md-nav md-nav--secondary" aria-label = "Table of contents" >
< label class = "md-nav__title" for = "__toc" >
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Table of contents
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2021-04-01 12:20:45 +02:00
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More Examples with DOVEADM
< / a >
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< a href = "../u_e-dovecot-vmail-volume/" class = "md-nav__link" >
Move Maildir (vmail)
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< a href = "../u_e-dovecot-public_folder/" class = "md-nav__link" >
Public folders
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-dovecot-static_master/" class = "md-nav__link" >
Static master user
< / a >
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< 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 >
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< a href = "../u_e-nginx/" class = "md-nav__link" >
Custom sites
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-webmail-site/" class = "md-nav__link" >
Create subdomain webmail.example.org
< / a >
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< / li >
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Rspamd
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SOGo
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< 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" >
XMPP
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "XMPP" data-md-level = "2" >
< label class = "md-nav__title" for = "__nav_8_9" >
< span class = "md-nav__icon md-icon" > < / span >
XMPP
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../u_e-xmpp-faq/" class = "md-nav__link" >
FAQ
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../u_e-xmpp-enable/" class = "md-nav__link" >
Enable XMPP
< / 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_10" type = "checkbox" id = "__nav_8_10" >
< label class = "md-nav__link" for = "__nav_8_10" >
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_10" >
< span class = "md-nav__icon md-icon" > < / span >
Docker
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< ul class = "md-nav__list" data-md-scrollfix >
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< a href = "../u_e-docker-cust_dockerfiles/" class = "md-nav__link" >
Customize Dockerfiles
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< / li >
< li class = "md-nav__item" >
< a href = "../u_e-docker-dc_bash_compl/" class = "md-nav__link" >
Docker Compose Bash Completion
< / a >
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< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
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Why unbound?
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< li class = "md-nav__item" >
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Autodiscover / Autoconfig
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< li class = "md-nav__item" >
< a href = "../u_e-80_to_443/" class = "md-nav__link" >
Redirect HTTP to HTTPS
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Adjust Service Configurations
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Deinstall
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Re-enable TLS 1.0 and TLS 1.1
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Client Configuration
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Client Configuration
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Microsoft Outlook
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Mozilla Thunderbird
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Windows Mail
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Windows Phone
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Manual configuration
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Third party apps
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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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Exchange Hybrid Setup
< / a >
< / li >
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Gogs
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Nextcloud
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Portainer
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Roundcube
< / a >
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SOGo Connector for Thunderbird
< / a >
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< / 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/u_e-dovecot-mail-crypt.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 > Mail crypt< / h1 >
< p > Mails are stored compressed (lz4) and encrypted. The key pair can be found in crypt-vol-1.< / p >
< p > If you want to decode/encode existing maildir files, you can use the following script at your own risk:< / p >
< p > Enter Dovecot by running < code > docker-compose exec dovecot-mailcow /bin/bash< / code > in the mailcow-dockerized location.< / p >
< div class = "highlight" > < pre > < span > < / span > < code > # Decrypt /var/vmail
find /var/vmail/ -type f -regextype egrep -regex ' .*S=.*W=.*' | while read -r file; do
if [[ $(head -c7 " $file" ) == " CRYPTED" ]]; then
doveadm fs get compress lz4:0:crypt:private_key_path=/mail_crypt/ecprivkey.pem:public_key_path=/mail_crypt/ecpubkey.pem:posix:prefix=/ \
" $file" > " /tmp/$(basename " $file" )"
if [[ -s " /tmp/$(basename " $file" )" ]]; then
chmod 600 " /tmp/$(basename " $file" )"
chown 5000:5000 " /tmp/$(basename " $file" )"
mv " /tmp/$(basename " $file" )" " $file"
else
rm " /tmp/$(basename " $file" )"
fi
fi
done
# Encrypt /var/vmail
find /var/vmail/ -type f -regextype egrep -regex ' .*S=.*W=.*' | while read -r file; do
if [[ $(head -c7 " $file" ) != " CRYPTED" ]]; then
doveadm fs put crypt private_key_path=/mail_crypt/ecprivkey.pem:public_key_path=/mail_crypt/ecpubkey.pem:posix:prefix=/ \
" $file" " $file"
chmod 600 " $file"
chown 5000:5000 " $file"
fi
done
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IMAP IDLE interval
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Copyright © 2021 André Peters
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