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< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/best-practices/dkim/" class = "md-nav__link" >
DKIM
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/best-practices/dmarc/" class = "md-nav__link" >
DMARC
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/best-practices/spf/" class = "md-nav__link" >
SPF
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/best-practices/autodiscover/" class = "md-nav__link" >
Auto-discovery
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_3_5" data-md-state = "indeterminate" type = "checkbox" id = "__nav_3_5" checked >
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< label class = "md-nav__link" for = "__nav_3_5" >
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Security
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Security" data-md-level = "2" >
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< label class = "md-nav__title" for = "__nav_3_5" >
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< span class = "md-nav__icon md-icon" > < / span >
Security
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/security/understanding-the-ports/" class = "md-nav__link" >
Understanding the Ports
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/security/ssl/" class = "md-nav__link" >
SSL/TLS
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/security/fail2ban/" class = "md-nav__link" >
Fail2Ban
< / a >
< / li >
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< li class = "md-nav__item" >
< a href = "../../../config/security/mail_crypt/" class = "md-nav__link" >
Mail Encryption
< / a >
< / li >
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< / ul >
< / nav >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_3_6" data-md-state = "indeterminate" type = "checkbox" id = "__nav_3_6" checked >
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< label class = "md-nav__link" for = "__nav_3_6" >
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Troubleshooting
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Troubleshooting" data-md-level = "2" >
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< label class = "md-nav__title" for = "__nav_3_6" >
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< span class = "md-nav__icon md-icon" > < / span >
Troubleshooting
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/troubleshooting/debugging/" class = "md-nav__link" >
Debugging
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/pop3/" class = "md-nav__link" >
Mail Delivery with POP3
< / a >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_3_8" data-md-state = "indeterminate" type = "checkbox" id = "__nav_3_8" checked >
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< label class = "md-nav__link" for = "__nav_3_8" >
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Advanced Configuration
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Advanced Configuration" data-md-level = "2" >
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< label class = "md-nav__title" for = "__nav_3_8" >
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< span class = "md-nav__icon md-icon" > < / span >
Advanced Configuration
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/optional-config/" class = "md-nav__link" >
Optional Configuration
< / a >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_3_8_2" data-md-state = "indeterminate" type = "checkbox" id = "__nav_3_8_2" checked >
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< label class = "md-nav__link" for = "__nav_3_8_2" >
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Maintenance
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Maintenance" data-md-level = "3" >
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< label class = "md-nav__title" for = "__nav_3_8_2" >
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< span class = "md-nav__icon md-icon" > < / span >
Maintenance
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/maintenance/update-and-cleanup/" class = "md-nav__link" >
Update and Cleanup
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_3_8_3" data-md-state = "indeterminate" type = "checkbox" id = "__nav_3_8_3" checked >
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< label class = "md-nav__link" for = "__nav_3_8_3" >
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Override the Default Configs
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Override the Default Configs" data-md-level = "3" >
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< label class = "md-nav__title" for = "__nav_3_8_3" >
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< span class = "md-nav__icon md-icon" > < / span >
Override the Default Configs
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/override-defaults/dovecot/" class = "md-nav__link" >
Dovecot
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/override-defaults/postfix/" class = "md-nav__link" >
Postfix
< / a >
< / li >
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< li class = "md-nav__item" >
< a href = "../../../config/advanced/override-defaults/user-patches/" class = "md-nav__link" >
Modifications via Script
< / a >
< / li >
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< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/auth-ldap/" class = "md-nav__link" >
LDAP Authentication
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/mail-sieve/" class = "md-nav__link" >
Email Filtering with Sieve
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/mail-fetchmail/" class = "md-nav__link" >
Email Gathering with Fetchmail
< / a >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
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< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_3_8_7" data-md-state = "indeterminate" type = "checkbox" id = "__nav_3_8_7" checked >
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< label class = "md-nav__link" for = "__nav_3_8_7" >
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Email Forwarding
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Email Forwarding" data-md-level = "3" >
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< label class = "md-nav__title" for = "__nav_3_8_7" >
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< span class = "md-nav__icon md-icon" > < / span >
Email Forwarding
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/mail-forwarding/relay-hosts/" class = "md-nav__link" >
Relay Hosts
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/mail-forwarding/aws-ses/" class = "md-nav__link" >
AWS SES
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/full-text-search/" class = "md-nav__link" >
Full-Text Search
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/kubernetes/" class = "md-nav__link" >
Kubernetes
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../config/advanced/ipv6/" class = "md-nav__link" >
IPv6
< / a >
< / li >
< / ul >
< / nav >
< / 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_4" type = "checkbox" id = "__nav_4" checked >
< label class = "md-nav__link" for = "__nav_4" >
Examples
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Examples" data-md-level = "1" >
< label class = "md-nav__title" for = "__nav_4" >
< span class = "md-nav__icon md-icon" > < / span >
Examples
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item md-nav__item--active md-nav__item--nested" >
< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_4_1" type = "checkbox" id = "__nav_4_1" checked >
< label class = "md-nav__link" for = "__nav_4_1" >
Tutorials
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Tutorials" data-md-level = "2" >
< label class = "md-nav__title" for = "__nav_4_1" >
< span class = "md-nav__icon md-icon" > < / span >
Tutorials
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item md-nav__item--active" >
< input class = "md-nav__toggle md-toggle" data-md-toggle = "toc" type = "checkbox" id = "__toc" >
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< label class = "md-nav__link md-nav__link--active" for = "__toc" >
Basic Installation
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< a href = "./" class = "md-nav__link md-nav__link--active" >
Basic Installation
< / a >
< nav class = "md-nav md-nav--secondary" aria-label = "Table of contents" >
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< 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 = "#building-a-simple-mailserver" class = "md-nav__link" >
Building a Simple Mailserver
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "../mailserver-behind-proxy/" class = "md-nav__link" >
Mailserver behind Proxy
< / 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_2" data-md-state = "indeterminate" type = "checkbox" id = "__nav_4_2" checked >
< label class = "md-nav__link" for = "__nav_4_2" >
Use Cases
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Use Cases" data-md-level = "2" >
< label class = "md-nav__title" for = "__nav_4_2" >
< span class = "md-nav__icon md-icon" > < / span >
Use Cases
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../uses-cases/forward-only-mailserver-with-ldap-authentication/" class = "md-nav__link" >
Forward-Only Mailserver with LDAP
< / a >
< / li >
< / ul >
< / nav >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "../../../faq/" class = "md-nav__link" >
FAQ
< / a >
< / li >
< li class = "md-nav__item md-nav__item--nested" >
< input class = "md-nav__toggle md-toggle" data-md-toggle = "__nav_6" data-md-state = "indeterminate" type = "checkbox" id = "__nav_6" checked >
< label class = "md-nav__link" for = "__nav_6" >
Contributing
< span class = "md-nav__icon md-icon" > < / span >
< / label >
< nav class = "md-nav" aria-label = "Contributing" data-md-level = "1" >
< label class = "md-nav__title" for = "__nav_6" >
< span class = "md-nav__icon md-icon" > < / span >
Contributing
< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "../../../contributing/issues-and-pull-requests/" class = "md-nav__link" >
Issues and Pull Requests
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../contributing/coding-style/" class = "md-nav__link" >
Coding Style
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../contributing/tests/" class = "md-nav__link" >
Tests
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "../../../contributing/documentation/" class = "md-nav__link" >
Documentation
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "https://hub.docker.com/repository/docker/mailserver/docker-mailserver" class = "md-nav__link" >
DockerHub
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "https://github.com/orgs/docker-mailserver/packages/container/package/docker-mailserver" class = "md-nav__link" >
GHCR
< / a >
< / 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" >
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< 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 = "#building-a-simple-mailserver" class = "md-nav__link" >
Building a Simple Mailserver
< / 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/docker-mailserver/docker-mailserver/edit/master/docs/content/examples/tutorials/basic-installation.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 > Basic Installation< / h1 >
< h2 id = "building-a-simple-mailserver" > < a class = "toclink" href = "#building-a-simple-mailserver" > Building a Simple Mailserver< / a > < / h2 >
< div class = "admonition warning" >
< p class = "admonition-title" > Warning< / p >
< p > Adding the docker network's gateway to the list of trusted hosts, e.g. using the < code > network< / code > or < code > connected-networks< / code > option, can create an < a href = "https://en.wikipedia.org/wiki/Open_mail_relay" > < strong > open relay< / strong > < / a > , for instance < a href = "https://github.com/docker-mailserver/docker-mailserver/issues/1405#issuecomment-590106498" > if IPv6 is enabled on the host machine but not in Docker< / a > .< / p >
< / div >
< p > We are going to use this docker based mailserver:< / p >
< ul >
< li >
< p > First create a directory for the mailserver and get the setup script:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > mkdir -p /var/ds/mail.example.org
< span class = "nb" > cd< / span > /var/ds/mail.example.org/
curl -o setup.sh < span class = "se" > \< / span >
https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/setup.sh
chmod a+x ./setup.sh
< / code > < / pre > < / div >
< / li >
< li >
< p > Create the file < code > docker-compose.yml< / code > with a content like this:< / p >
< div class = "admonition example" >
< p class = "admonition-title" > Example< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < span class = "nt" > version< / span > < span class = "p" > :< / span > < span class = "s" > ' 2' < / span >
< span class = "nt" > services< / span > < span class = "p" > :< / span >
< span class = "nt" > mail< / span > < span class = "p" > :< / span >
< span class = "nt" > image< / span > < span class = "p" > :< / span > < span class = "l l-Scalar l-Scalar-Plain" > mailserver/docker-mailserver:latest< / span >
< span class = "nt" > hostname< / span > < span class = "p" > :< / span > < span class = "l l-Scalar l-Scalar-Plain" > mail< / span >
< span class = "nt" > domainname< / span > < span class = "p" > :< / span > < span class = "l l-Scalar l-Scalar-Plain" > example.org< / span >
< span class = "nt" > container_name< / span > < span class = "p" > :< / span > < span class = "l l-Scalar l-Scalar-Plain" > mail< / span >
< span class = "nt" > ports< / span > < span class = "p" > :< / span >
< span class = "p p-Indicator" > -< / span > < span class = "s" > " 25:25" < / span >
< span class = "p p-Indicator" > -< / span > < span class = "s" > " 587:587" < / span >
< span class = "p p-Indicator" > -< / span > < span class = "s" > " 465:465" < / span >
< span class = "nt" > volumes< / span > < span class = "p" > :< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ./data/:/var/mail/< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ./state/:/var/mail-state/< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ./config/:/tmp/docker-mailserver/< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > /var/ds/wsproxy/letsencrypt/:/etc/letsencrypt/< / span >
< span class = "nt" > environment< / span > < span class = "p" > :< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > PERMIT_DOCKER=network< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > SSL_TYPE=letsencrypt< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ONE_DIR=1< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > DMS_DEBUG=1< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > SPOOF_PROTECTION=0< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > REPORT_RECIPIENT=1< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ENABLE_SPAMASSASSIN=0< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ENABLE_CLAMAV=0< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ENABLE_FAIL2BAN=1< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > ENABLE_POSTGREY=0< / span >
< span class = "nt" > cap_add< / span > < span class = "p" > :< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > NET_ADMIN< / span >
< span class = "p p-Indicator" > -< / span > < span class = "l l-Scalar l-Scalar-Plain" > SYS_PTRACE< / span >
< / code > < / pre > < / div >
< / div >
< p > For more details about the environment variables that can be used, and their meaning and possible values, check also these:< / p >
< ul >
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< li > < a href = "../../../config/environment/" > Environment Variables< / a > < / li >
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< li > < a href = "https://github.com/docker-mailserver/docker-mailserver/blob/master/mailserver.env" > < code > mailserver.env< / code > file< / a > < / li >
< / ul >
< p > Make sure to set the proper < code > domainname< / code > that you will use for the emails. We forward only SMTP ports (not POP3 and IMAP) because we are not interested in accessing the mailserver directly (from a client). We also use these settings:< / p >
< ul >
< li > < code > PERMIT_DOCKER=network< / code > because we want to send emails from other docker containers.< / li >
< li > < code > SSL_TYPE=letsencrypt< / code > because we will manage SSL certificates with letsencrypt.< / li >
< / ul >
< / li >
< li >
< p > We need to open ports < code > 25< / code > , < code > 587< / code > and < code > 465< / code > on the firewall:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > ufw allow < span class = "m" > 25< / span >
ufw allow < span class = "m" > 587< / span >
ufw allow < span class = "m" > 465< / span >
< / code > < / pre > < / div >
< p > On your server you may have to do it differently.< / p >
< / li >
< li >
< p > Pull the docker image: < code > docker pull mailserver/docker-mailserver:latest< / code > < / p >
< / li >
< li >
< p > Now generate the DKIM keys with < code > ./setup.sh config dkim< / code > and copy the content of the file < code > config/opendkim/keys/domain.tld/mail.txt< / code > on the domain zone configuration at the DNS server. I use < a href = "https://github.com/docker-scripts/bind9" > bind9< / a > for managing my domains, so I just paste it on < code > example.org.db< / code > :< / p >
< div class = "highlight" > < pre > < span > < / span > < code > mail._domainkey IN TXT ( " v=DKIM1; h=sha256; k=rsa; "
" p=MIIBIjANBgkqhkiG9w0BAQEFACAQ8AMIIBCgKCAQEAaH5KuPYPSF3Ppkt466BDMAFGOA4mgqn4oPjZ5BbFlYA9l5jU3bgzRj3l6/Q1n5a9lQs5fNZ7A/HtY0aMvs3nGE4oi+LTejt1jblMhV/OfJyRCunQBIGp0s8G9kIUBzyKJpDayk2+KJSJt/lxL9Iiy0DE5hIv62ZPP6AaTdHBAsJosLFeAzuLFHQ6USyQRojefqFQtgYqWQ2JiZQ3"
" iqq3bD/BVlwKRp5gH6TEYEmx8EBJUuDxrJhkWRUk2VDl1fqhVBy8A9O7Ah+85nMrlOHIFsTaYo9o6+cDJ6t1i6G1gu+bZD0d3/3bqGLPBQV9LyEL1Rona5V7TJBGg099NQkTz1IwIDAQAB" ) ; ----- DKIM key mail for example.org
< / code > < / pre > < / div >
< / li >
< li >
< p > Add these configurations as well on the same file on the DNS server:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > mail IN A 10.11.12.13
; mailservers for example.org
3600 IN MX 1 mail.example.org.
; Add SPF record
IN TXT " v=spf1 mx ~all"
< / code > < / pre > < / div >
< p > Then don't forget to change the serial number and to restart the service.< / p >
< / li >
< li >
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< p > Get an SSL certificate from letsencrypt. I use < a href = "https://gitlab.com/docker-scripts/wsproxy" > wsproxy< / a > for managing SSL letsencrypt certificates of my domains:< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > < span class = "nb" > cd< / span > /var/ds/wsproxy
ds domains-add mail mail.example.org
ds get-ssl-cert myemail@gmail.com mail.example.org --test
ds get-ssl-cert myemail@gmail.com mail.example.org
< / code > < / pre > < / div >
< p > Now the certificates will be available on < code > /var/ds/wsproxy/letsencrypt/live/mail.example.org< / code > .< / p >
< / li >
< li >
< p > Start the mailserver and check for any errors:< / p >
< div class = "highlight" > < pre > < span > < / span > < code > apt install docker-compose
docker-compose up mail
< / code > < / pre > < / div >
< / li >
< li >
< p > Create email accounts and aliases with < code > SPOOF_PROTECTION=0< / code > :< / p >
< div class = "highlight" > < pre > < span > < / span > < code > ./setup.sh email add admin@example.org passwd123
./setup.sh email add info@example.org passwd123
./setup.sh < span class = "nb" > alias< / span > add admin@example.org myemail@gmail.com
./setup.sh < span class = "nb" > alias< / span > add info@example.org myemail@gmail.com
./setup.sh email list
./setup.sh < span class = "nb" > alias< / span > list
< / code > < / pre > < / div >
< p > Aliases make sure that any email that comes to these accounts is forwarded to my real email address, so that I don't need to use POP3/IMAP in order to get these messages. Also no anti-spam and anti-virus software is needed, making the mailserver lighter.< / p >
< / li >
< li >
< p > Or create email accounts and aliases with < code > SPOOF_PROTECTION=1< / code > :< / p >
< div class = "highlight" > < pre > < span > < / span > < code > ./setup.sh email add admin.gmail@example.org passwd123
./setup.sh email add info.gmail@example.org passwd123
./setup.sh < span class = "nb" > alias< / span > add admin@example.org admin.gmail@example.org
./setup.sh < span class = "nb" > alias< / span > add info@example.org info.gmail@example.org
./setup.sh < span class = "nb" > alias< / span > add admin.gmail@example.org myemail@gmail.com
./setup.sh < span class = "nb" > alias< / span > add info.gmail@example.org myemail@gmail.com
./setup.sh email list
./setup.sh < span class = "nb" > alias< / span > list
< / code > < / pre > < / div >
< p > This extra step is required to avoid the < code > 553 5.7.1 Sender address rejected: not owned by user< / code > error (the account used for setting up gmail is < code > admin.gmail@example.org< / code > and < code > info.gmail@example.org< / code > )< / p >
< / li >
< li >
< p > Send some test emails to these addresses and make other tests. Then stop the container with < code > ctrl+c< / code > and start it again as a daemon: < code > docker-compose up -d mail< / code > .< / p >
< / li >
< li >
< p > Now save on Moodle configuration the SMTP settings and test by trying to send some messages to other users:< / p >
< ul >
< li > < strong > SMTP hosts< / strong > : < code > mail.example.org:465< / code > < / li >
< li > < strong > SMTP security< / strong > : < code > SSL< / code > < / li >
< li > < strong > SMTP username< / strong > : < code > info@example.org< / code > < / li >
< li > < strong > SMTP password< / strong > : < code > passwd123< / code > < / li >
< / ul >
< / li >
< / ul >
< / article >
< / div >
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< p > & copy < a href = "https://github.com/docker-mailserver" > < em > Docker Mailserver Organization< / em > < / a > < br / > < span > This project is licensed under the MIT license.< / span > < / p >
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