Freedom251 › Email Server Software
Docker Mailserver
Facts from Docker Mailserver's own pages
- Administration
- The project provides a setup script to configure and administer the mail server. · docker-mailserver.github.io, 13 Oct 2026
- Authentication
- The repository lists LDAP and OAuth2 authentication support, including XOAUTH2 and OAUTHBEARER SASL mechanisms. · github.com, 13 Oct 2026
- Client compatibility
- DMS supplies the server side of email, and its documentation says clients can include terminal programs, desktop applications or a web interface. · docker-mailserver.github.io, 12 Oct 2026
- Configuration
- It uses configuration files and does not require a SQL database. · docker-mailserver.github.io, 13 Oct 2026
- Customization
- DMS supports simple customization through Docker Compose configuration and environment variables, and advanced customization through configuration patches or a derived image. · docker-mailserver.github.io, 12 Oct 2026
- 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. · docker-mailserver.github.io, 13 Oct 2026
- 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. · docker-mailserver.github.io, 13 Oct 2026
- Image distribution
- The usage guide says images are built and pushed to Docker Hub and GitHub Container Registry. · docker-mailserver.github.io, 13 Oct 2026
- IMAP and POP3
- The default configuration enables IMAP with TLS on ports 993 and 143 and disables POP3. · docker-mailserver.github.io, 12 Oct 2026
- Included services
- The project’s repository lists Postfix, Dovecot, Rspamd, Amavis, SpamAssassin, ClamAV, OpenDKIM, OpenDMARC, Fail2ban, Fetchmail, and Getmail6 among its included services. · github.com, 13 Oct 2026
- Integrations
- Documented email relay options include AWS SES and Gmail, and the project also documents Kubernetes and Podman deployment. · docker-mailserver.github.io, 12 Oct 2026
- License
- The project is licensed under the MIT license. · docker-mailserver.github.io, 13 Oct 2026
- Mail components
- The documented mail delivery components include Postfix as the mail transfer agent and Dovecot as the mail delivery agent. · docker-mailserver.github.io, 12 Oct 2026
- Mail security
- The project documents TLS for mail connections and recommends preferring implicit TLS ports where possible. · docker-mailserver.github.io, 13 Oct 2026
- Podman support
- The project says Podman is not officially supported because DMS is built and verified on Docker Engine; its Podman guide is community supported. · docker-mailserver.github.io, 13 Oct 2026
- Purpose
- Docker Mailserver is a production-ready mail server supporting SMTP, IMAP, LDAP, anti-spam, and anti-virus. · docker-mailserver.github.io, 13 Oct 2026
- Security options
- The documentation includes configuration guidance for SSL/TLS, Fail2Ban, mail encryption, Rspamd, DKIM, DMARC, SPF and MTA-STS. · docker-mailserver.github.io, 12 Oct 2026
- Setup
- The project supplies a setup.sh script to configure and administer the server. · docker-mailserver.github.io, 12 Oct 2026
- Support
- The repository asks users to consult the documentation before opening issues and says the issue tracker is for issues, not personal support. · github.com, 13 Oct 2026
- Support and guidance
- The project provides versioned setup, configuration, usage, examples and FAQ documentation and asks users to consult the documentation before opening an issue. · docker-mailserver.github.io, 12 Oct 2026
- Supported image platforms
- The current container package lists linux/amd64 and linux/arm64 images. · github.com, 13 Oct 2026
- TLS
- The TLS guide documents certificate provisioning with Let's Encrypt, Caddy, Traefik, self-signed certificates, or user-provided certificates. · docker-mailserver.github.io, 13 Oct 2026
- Transport security
- The documented default enables and requires STARTTLS on port 587 for outbound submission, while port 25 supports unencrypted submission and inbound mail by default. · docker-mailserver.github.io, 12 Oct 2026
- What it does
- Docker Mailserver is a production-ready full-stack mail server providing SMTP, IMAP, LDAP, anti-spam and anti-virus in a container. · docker-mailserver.github.io, 12 Oct 2026
Where Docker Mailserver stands on Freedom251
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