Posta

Judgement

What it is

Complete system

What it does

A self-hosted email delivery platform where apps send mail via HTTP API or SMTP, with templates, storage, analytics and relaying, as a SendGrid or Mailgun alternative.

Adopt it when

You want your apps' transactional email behind one self-hosted API with logs and templates.

Watch out

Seven months old at version 0.17, under AGPL.

Ready for

Experimental

Runs as

Self-hosted server

Built with

Go, Gorm, Vue, PostgreSQL and Redis

How established

Young: started 7 months ago, latest release v0.17.0.

What the license allows

Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Posta → Go → runs on a microchip

How compilers were built, back to punched paper tape

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