Docker Mailserver vs piler

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?
FeatureDocker Mailserverpiler
CategoryMail ServersMail Servers
LicenseMITGPL-3.0
LanguageShellC
Setup difficultyMediumHard
Min. RAM2,048 MB2,048 MB
Deploymentdockerbare-metal, source
GitHub stars★ 18,682★ 200
First released20152012
ReplacesGoogle Workspace, Microsoft 365Mimecast, Barracuda Archiver

Why pick each one

Choose Docker Mailserver if…

  • Reproducible, version-controllable config
  • Lightweight
Docker Mailserver details

Choose piler if…

  • Released under the GPL-3.0 license
  • Written in C
piler details

Frequently asked questions

Is Docker Mailserver or piler better?

Docker Mailserver is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider piler if its specific feature set fits your needs better.

Are Docker Mailserver and piler free and open-source?

Yes. Docker Mailserver is licensed under MIT and piler under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Docker Mailserver and piler with Docker?

Docker Mailserver: yes. piler: check the project docs for container support.

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