alps vs Cypht

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?
FeaturealpsCypht
CategoryMail ServersMail Servers
LicenseMITLGPL-2.1
LanguageGoPHP
Setup difficultyMediumMedium
Min. RAM64 MB128 MB
Deploymentbinary, sourcedocker, bare-metal, source
GitHub stars★ 700★ 1,672
First released20202015
ReplacesGmailGmail, Outlook Web

Why pick each one

Choose alps if…

  • Released under the MIT license
  • Written in Go
  • Tiny footprint — runs in 64 MB RAM
alps details

Choose Cypht if…

  • Released under the LGPL-2.1 license
  • First-class Docker support for quick deployment
  • Active community (1.7k GitHub stars)
  • Written in PHP
Cypht details

Frequently asked questions

Is alps or Cypht better?

Neither is universally better. Cypht has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are alps and Cypht free and open-source?

Yes. alps is licensed under MIT and Cypht under LGPL-2.1. Both can be self-hosted at no software cost.

Can I run alps and Cypht with Docker?

alps: check the project docs for container support. Cypht: yes.

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