foxcpp/maddy

Health v2 · maintenance only

Adoption not part of the score

6077 stars · 326 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Maddy is a composable all-in-one mail server written in Go that combines an SMTP MTA/MX, IMAP storage, and email security protocols (DKIM, SPF, DMARC, DANE, MTA-STS) in a single daemon. It replaces the traditional Postfix + Dovecot + OpenDKIM stack with one lightweight, uniformly configured binary.

Use cases

• self-host a personal email server on a VPS
• run an SMTP server to send and receive mail
• host an IMAP mailbox server
• sign outgoing mail with DKIM and enforce SPF/DMARC
• replace Postfix and Dovecot with a single lightweight daemon
• set up a small mail server without Docker

When to choose

• you want a minimal, single-binary mail server for a small personal or low-volume domain
• you prefer uniform configuration over stitching together Postfix, Dovecot, and OpenDKIM
• you want a memory-safe Go implementation that doesn't need root
• you have limited resources (about 1 GiB RAM is enough)

When to avoid

• you need a mature, feature-packed IMAP server - Dovecot is more battle-tested
• you want a web admin interface or a full groupware bundle like MailCow or Mail-in-a-Box
• you run a large, high-volume mail operation needing 20-year-old proven software
• your provider blocks outbound port 25 and you can't use a smart host

Facets

application · maturity active

email http-server security monitoring self-hosted email self-hosted networking security backend go self-hosted cross-platform mail-server smtp imap dkim spf dmarc mta mx single-binary email-security linux docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="foxcpp/maddy")