Postal
Open source mail server. SMTP, delivery, bounces, all in one.
What it is
Postal is a complete open source mail server. SMTP for sending (with DKIM/SPF/DMARC), IMAP/POP3 for receiving, webhooks for bounces and complaints, click/open tracking, suppression lists, and a web admin UI.
Why we recommend it
If you send transactional email from your own infrastructure (not via SendGrid/Mailgun), Postal is the cleanest way to run it. The admin UI is much nicer than rolling your own Postfix.
When to use it
- Self-hosted transactional email
- Running your own SMTP relay
- Privacy-sensitive email (your own server, your own data)
- When you want to avoid SendGrid/Mailgun fees
Quickstart
Run this in your terminal. Self-hosts locally with Docker or your preferred setup.
$ git clone https://github.com/postalserver/postal && cd postal && ./bin/installSetup
Tags
Integrates with
Common use cases
- →transactional-email
- →self-hosted-mail
- →smtp-relay
- →privacy
Pricing
Free. MIT licensed. Self-host on Ubuntu/Debian.
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