ToolVitals

Self-Hosted Email Server

Alternatives to gromox

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

View gromox profile View Self-Hosted Email Server leaderboard

Why compare

Signals behind this alternatives page

  • Maintenance and shipping signals are strong.
  • Health score: 83/100.
  • Shipping score: 89/100.

Switching guide

Best alternatives by need

Best overallMailu

Highest organic ToolVitals fit for this use case.

Verified open/source-visibleMailu, Modoboa, KumoMTA, Mox

Useful when portability and inspectability matter.

License unknown, source-visible signalsMail-in-a-Box

Public source signals exist, but ToolVitals has not verified the license class.

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Ranked alternatives

Best-fit self-hosted email server options

6 tools
01

Mailu

Self-hosted mail server stack packaged as Docker images.

Active
Health85
Shipping82
Score86
Confidence89
Stars7.4k
ModeSource-visible project
View profile Compare with gromox
03

KumoMTA

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

Active
Health77
Shipping72
Score81
Confidence97
Stars511
ModeSource-visible project
View profile Compare with gromox
04

Mox

modern full-featured open source secure mail server for low-maintenance self-hosted email

Warning
Health65
Shipping35
Score61
Confidence73
Stars5.8k
ModeSource-visible project
View profile Compare with gromox
05

Mail-in-a-Box

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Critical
Health49
Shipping20
Score52
Confidence92
Stars15.4k
ModeSource-visible project
View profile Compare with gromox