docker-mailserver

Docker Mailserver based on the famous ISPMail guide. All images are based on Alpine Linux and are so small as possible.

Changelog

Build status

Features

• POP3, IMAP, SMTP with user authentication
• TLS enforced
• Webmail interface
• Server-side mail filtering, rule configuration via web frontend
• Spam- and malware filter
• Catchall address support
• Restricted sender addresses
• Spamfilter is trained just by moving emails to or out of the junk folder
• Uses RBL (real time black hole lists) to block already known spam senders
• Greylisting only when incoming mail is likely spam
• DKIM message signing
• Quota support
• Notifications when exceeding the quota
• Web management interface to create / remove accounts, domains and aliases
• Support of send only accounts which are not allowed to receive but send mails
• IMAP, POP3 and malware filters can be disabled if they are not used
• FTS (Full-Text Search) support using fts-xapian for fast message searching
• Permanent self testing by Docker's healthcheck feature
• Developed with high quality assurance standards
• Address extension (-)

Installation (basic setup)

1. Run git clone git@github.com:jeboehm/docker-mailserver.git
2. Copy the file .env.dist to .env and change the variables in it according to your needs. The variables are described in the Wiki.
3. Run bin/production.sh pull to download the images.
4. Run bin/production.sh up -d to start the services.
5. After a few seconds you can access the services listed in the paragraph Services.
6. Create your first email address and an admin user by running bin/production.sh run --rm web setup.sh. The wizard will ask you a few questions to set everything up.
7. Now you can login to the management interface with your new account credentials.

Screenshots

Manage users

Manage aliases

DKIM setup

Documentation

• Configuration
• Advanced setup:
  • Use own TLS certficates
  • Use another MySQL instance
  • Use the web service behind nginx-proxy
  • Container health monitoring
  • Disable malware scanning
  • Advanced malware signatures
  • Use an external mail relay
  • Add plugins to Roundcube
• Features:
  • Local address extension
  • Sender policy framework, SPF
  • DKIM
• Technical details:
  • Data storage
  • Filtering
  • Component overview
  • DockerHub images
• Upgrading
• Troubleshooting

Services

Service	Address
POP3 (starttls needed)	127.0.0.1:110
POP3S	127.0.0.1:995
IMAP (starttls needed)	127.0.0.1:143
IMAPS	127.0.0.1:993
SMTP	127.0.0.1:25
Mail Submission (starttls needed)	127.0.0.1:587
Mail Submission (SSL, disabled by default)	127.0.0.1:465
Management Interface	http://127.0.0.1:81/manager/
Webmail	http://127.0.0.1:81/webmail/
Rspamd Webinterface	http://127.0.0.1:81/rspamd/