SHSelfHostIndex

Mailu vs OnlyOffice Community Server

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
MA Mailu Simple yet full-featured Docker mail server VS ON OnlyOffice Community Server Collaboration server pairing with the ONLYOFFICE editors
FeatureMailuOnlyOffice Community Server
CategoryMail ServersOffice Suites
LicenseMITApache-2.0
LanguagePythonC#
Setup difficultyMediumMedium
Min. RAM2,048 MB4,096 MB
Deploymentdocker, kubernetesdocker, bare-metal
GitHub stars★ 7,443★ 3,153
First released20162014
ReplacesGoogle Workspace, Microsoft 365Microsoft 365

Why pick each one

Choose Mailu if…

  • Lighter than mailcow
  • Kubernetes support
Mailu details

Choose OnlyOffice Community Server if…

  • Integrated office portal
  • Open source core
OnlyOffice Community Server details

Frequently asked questions

Is Mailu or OnlyOffice Community Server better?

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

Are Mailu and OnlyOffice Community Server free and open-source?

Yes. Mailu is licensed under MIT and OnlyOffice Community Server under Apache-2.0. Both can be self-hosted at no software cost.

Can I run Mailu and OnlyOffice Community Server with Docker?

Mailu: yes. OnlyOffice Community Server: yes.

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