docker-mailserver vs Postal

A side-by-side comparison of docker-mailserver and Postal — stars, license, self-host difficulty, deploy options, and what each replaces.

TaglineProduction-ready, config-driven mail server in a single containerSelf-hosted mail delivery platform, a SendGrid/Mailgun alternative
CategoryEmail & NewslettersEmail & Newsletters
ReplacesGmail / Google WorkspaceSendGrid
GitHub stars18k17k
LanguageShellRuby
LicenseMITMIT
Self-host difficulty
4/5
Involved
4/5
Involved
Deploy options
Docker
Docker Compose
Manual
Docker
Docker Compose
Manual
Managed hosting
Last updated9 days ago18 days ago
View repoView repo
docker-mailserver

Production-ready, config-driven mail server in a single container

Postal

Self-hosted mail delivery platform, a SendGrid/Mailgun alternative