Exim vs hMailServer
Exim
exim.orghMailServer
hmailserver.comSide by side
| Figure | Exim | hMailServer |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Mail Server Software | 8.1 (#9) | 8.0 (#10) |
| Download verification | Published source tarballs are cryptographically signed with OpenPGP, and signatures are distributed alongside them. | The FAQ says release files have Sigstore bundles, Linux SHA-256 checksums and Windows Authenticode signature verification instructions. |
| Security updates | The website identifies version 4.100.1 as a security release addressing four listed security issues. | The FAQ says release 6.3.6 fixes security flaws found in earlier versions and that the 6.3 line receives security fixes until 30 September 2027. |
Plans
In their own words
hMailServer
hMailServer has no write-up on Specifiction yet; its figures are above.