mailserver

docker-mailserver / docker-mailserver

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

ldap mail postfix imap container smtp dovecot pop3 fail2ban mailserver rspamd

Updated Aug 31, 2026
Shell

Billionmail / BillionMail

Star

BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr

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Updated Jun 11, 2026
Go

mailcow / mailcow-dockerized

Sponsor

Star

mailcow: dockerized - 🐮 + 🐋 = 💕

docker mail docker-compose postfix acme imap clamav smtp dovecot groupware mailserver rspamd hacktoberfest mailcow sogo servercow olefy

Updated Sep 1, 2026
JavaScript

Mailu / Mailu

Star

Insular email distribution - mail server as Docker images

letsencrypt docker mail docker-compose email imap smtp dkim webmail pop3 mailserver dmarc fetchmail

Updated Aug 21, 2026
Python

modoboa / modoboa

Sponsor

Star

Mail hosting made simple

javascript vuejs django email postfix hosting python3 dovecot mailserver rspamd vuetify modoboa vuejs3

Updated Aug 29, 2026
Python

inbucket / inbucket

Star

Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.

go windows linux golang mail osx integration-testing smtp pop smtp-server webmail pop3 mailserver

Updated Apr 2, 2026
Go

mailslurper / mailslurper

Star

Local, web-based mail server application. Slurp mails into oblivion!

javascript go bootstrap mail smtp smtp-server mailserver development-tools mailslurper

Updated Dec 5, 2025
JavaScript

hardware / mailserver

Star

⚠️ UNMAINTAINED - Simple and full-featured mail server using Docker

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Updated Jan 1, 2020
Shell

albertito / chasquid

Star

SMTP (email) server with a focus on simplicity, security, and ease of operation [mirror]

go golang mail server smtp mta mailserver email-security go-application

Updated Aug 30, 2026
Go

bokysan / docker-postfix

Star

Multi architecture simple SMTP server (postfix null relay) host for your Docker and Kubernetes containers. Based on Debian/Ubuntu/Alpine.

docker kubernetes mail docker-compose docker-container postfix docker-image smtp dkim smtp-server mailserver dkim-keys docker-postfix postfix-docker helm-chart postfix-configuration postfix-relay postfix-server relaying-messages

Updated Aug 14, 2026
Shell

jeboehm / docker-mailserver

Star

Self-hosted email server with Docker/Kubernetes support. Features IMAP, SMTP, spam filtering, webmail, and web admin.

docker docker-compose postfix alpine-linux dovecot bats roundcube imap-server mailserver rspamd integration-tests docker-mailserver

Updated Aug 31, 2026
Shell

o4oren / Ad-Hoc-Email-Server

Star

An ad-hoc disposable temporary mail server. Create and use ad hoc disposable mailboxes for testing or any other purpose.

mail disposable-email webmail mailbox mailserver mailboxes temporary-email disposable-emails ahem-server

Updated Apr 6, 2026
TypeScript

liuch / dmarc-srg

Star

A php parser, viewer and summary report generator for incoming DMARC reports.

mailserver dmarc xml-files dmarc-reports dmarc-aggregate-reports dmarc-parser dmarc-srg

Updated Aug 13, 2026
PHP

Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analytics. Fully self-hostable alternative to services like SendGrid or Mailgun.

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Updated Aug 29, 2026
Go

truespar / sentio

Star

Email inbox API for AI agents. Give every agent its own real email address, receive mail as structured webhooks, and reply in-thread over REST. A complete multi-tenant mail server in Rust: inbound and outbound, DKIM/SPF/DMARC/ARC, MTA-STS, DANE, three-tier anti-spam.