ToolVitals

Self-Hosted Email Server

Alternatives to Mox

Compare healthier or more active tools in the same use case using ToolVitals public evidence.

View Mox profileView Self-Hosted Email Server leaderboard

Why compare

Signals behind this alternatives page

  • Mox currently shows at least one risk or watch signal in ToolVitals data.
  • The project is active, but some maintenance signals are mixed.
  • Health score: 73/100.
  • Shipping score: 60/100.

Switching guide

Best alternatives by need

Best overallModoboa

Highest organic ToolVitals fit for this use case.

Healthier optionsModoboa, Mailu, KumoMTA, gromox

Stronger current public-health signal than Mox.

Verified open/source-visibleModoboa, Mailu, KumoMTA, gromox

Useful when portability and inspectability matter.

Trust note: Sponsors and affiliate links are separate from rankings. ToolVitals does not let monetization change scores, risk labels, organic ordering, or evidence display.

Ranked alternatives

Best-fit self-hosted email server options

4 tools
02

Mailu

Self-hosted mail server stack packaged as Docker images.

Active
Health95
Shipping93
Score94
Confidence90
Stars7.6k
ModeSource-visible project
View profileCompare with Mox
03

KumoMTA

The first Open-Source high-performance MTA developed from the ground-up for high-volume email sending environments.

Active
Health93
Shipping89
Score91
Confidence90
Stars563
ModeSource-visible project
View profileCompare with Mox
04

gromox

Groupware backend supporting mail and calendar protocols.

Active
Health94
Shipping93
Score94
Confidence90
Stars268
ModeSource-visible project
View profileCompare with Mox