Self-Hosted Email Server

Alternatives to Mail-in-a-Box

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

View Mail-in-a-Box profile View Self-Hosted Email Server leaderboard

Why compare

Signals behind this alternatives page

Mail-in-a-Box currently shows at least one risk or watch signal in ToolVitals data.
Multiple signals suggest declining health or reduced shipping momentum.
Health score: 49/100.
Shipping score: 20/100.

Switching guide

Best alternatives by need

Best overallMailu

Highest organic ToolVitals fit for this use case.

Healthier optionsMailu, Modoboa, gromox, KumoMTA

Stronger current public-health signal than Mail-in-a-Box.

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

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