Mailu
★ 7.5kMIT LicenseOpen Source — No Paywall10 Containers — 10 containers — heavy hosting footprintDockerNo external DB16 active committers (12mo)
About
Mailu is an open-source mail server project packaged as a collection of Docker images. It is intended for people who want a full-featured email stack that is straightforward to deploy and maintain...
Community Ratings
No ratings yetNew this week
Read recap →Weekly Recap — Oct 2, 2026 – Oct 9, 2026Oct 9, 2026
Features
- IMAP and IMAP+ email service
- SMTP and Submission
- auto-configuration profiles
- aliases and domain aliases
- custom routing
- full-text search of email attachments
- multiple webmails
- administration interface
- global admins and per-domain delegation
- anti-spam and anti-virus protection
Details
- Last Updated
- Oct 10, 2026
- Created
- Jan 10, 2016
- Install Methods
- docker
- Runtime / Stack
- DockerPython
- Privacy & Independence
- No TelemetryNo Cloud Required
- User Model
- Multi-User
- Deployment
Deployment: Docker Compose ✓10 Containers — heavy hosting footprintRuns as 10 containers
Docker Compose
10 services · infra: nginx, redis
no resource limits declared
needs persistent storage (16 volumes)
docs/compose/docker-compose.yml · @ 3756390 · scanned Sep 23, 2026
# WARNING: this file is being deprecated over the new setup utility, found at https://setup.mailu.io
services:
front:
image: mailu/nginx:$VERSION
restart: always
env_file: .env
logging:
driver: journald
options:
tag: mailu-front
ports:
- "$BIND_ADDRESS4:80:80"
- "$BIND_ADDRESS4:443:443"
- "$BIND_ADDRESS4:110:110"
- "$BIND_ADDRESS4:143:143"
- "$BIND_ADDRESS4:993:993"
- "$BIND_ADDRESS4:995:995"
# ...
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