Docker Mailserver

docker-mailserver.github.io · checked 13 Oct 2026

#12 · Email Server Software

Visit docker-mailserver.github.io ↗ Alternatives Docker Mailserver vs Modoboa

How it plugs in

—Public API

NoOpen source

YesFree tier

Signal on Email Server Software6.0#12 of 33

Docker Mailserver is a production-ready full-stack mail server providing SMTP, IMAP, LDAP, anti-spam and anti-virus in a container.

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Facts

Website: docker-mailserver.github.io
Price: Free tier
Free trial: No
Administration: The project provides a setup script to configure and administer the mail server.
Authentication: The repository lists LDAP and OAuth2 authentication support, including XOAUTH2 and OAUTHBEARER SASL mechanisms.
Client compatibility: DMS supplies the server side of email, and its documentation says clients can include terminal programs, desktop applications or a web interface.
Configuration: It uses configuration files and does not require a SQL database.
Customization: DMS supports simple customization through Docker Compose configuration and environment variables, and advanced customization through configuration patches or a derived image.
Deployment: The usage guide uses Docker Compose as its reference and requires a host the user can manage, a domain, and the ability to manage its DNS.
Fail2Ban: Fail2Ban support can be enabled, and the documentation says it requires granting the container at least the NET_ADMIN capability to ban IP addresses.
Image distribution: The usage guide says images are built and pushed to Docker Hub and GitHub Container Registry.
IMAP and POP3: The default configuration enables IMAP with TLS on ports 993 and 143 and disables POP3.
Included services: The project’s repository lists Postfix, Dovecot, Rspamd, Amavis, SpamAssassin, ClamAV, OpenDKIM, OpenDMARC, Fail2ban, Fetchmail, and Getmail6 among its included services.
Integrations: Documented email relay options include AWS SES and Gmail, and the project also documents Kubernetes and Podman deployment.
License: The project is licensed under the MIT license.

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