M

mta

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

Go implementation for Postfix socketmap table lookup client.

MTA Deployment

spf is an open source implementation of the Sender Policy Framework (SPF) in Go.

It is used by the chasquid and maddy SMTP servers.

The Exim MTA

Canonical git repo: https://git.exim.org/exim.git

Postfix image on an Alpine base. Users stored in a PostgreSQL database.

Mail header analyzer that checks malicious hostnames (MTAs) via abuseIP API. It also extracts useful information as sender and SPF checks.