aerc vs SnappyMail

A side-by-side comparison of two self-hosted mail servers options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureaercSnappyMail
CategoryMail ServersMail Servers
LicenseMITAGPL-3.0
LanguageGoPHP
Setup difficultyMediumEasy
Min. RAM64 MB128 MB
Deploymentbinary, sourcedocker, bare-metal, source
GitHub stars★ 3,300★ 1,670
First released20192021
ReplacesGmail, OutlookGmail, Outlook Web

Why pick each one

Choose aerc if…

  • Released under the MIT license
  • Active community (3.3k GitHub stars)
  • Written in Go
  • Tiny footprint — runs in 64 MB RAM
aerc details

Choose SnappyMail if…

  • Very lightweight
  • Actively maintained RainLoop fork
SnappyMail details

Frequently asked questions

Is aerc or SnappyMail better?

Neither is universally better. aerc has the larger community, while SnappyMail is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are aerc and SnappyMail free and open-source?

Yes. aerc is licensed under MIT and SnappyMail under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run aerc and SnappyMail with Docker?

aerc: check the project docs for container support. SnappyMail: yes.

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