hadoopvsPostal
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| hadoop | Postal | |
|---|---|---|
| Score | 76/100 | 72/100 |
| Rank in category | #1 of 1 in Distributed Systems | #3 of 16 in Mail Server |
| GitHub stars | 15 702 | 16 899 |
| Stars, last 30 days | +33 | +72 |
| Stable releases, 12 months | 0 | 3 |
| Latest release | — | 3.3.7 · 3 Jun 2026 |
| Setup | Advanced | Advanced |
| Official Docker image | No | Yes |
| License | Apache-2.0 | MIT |
| Main language | Java | Ruby |
Which one should you pick?
hadoop scores 76/100 against 72/100 for Postal, so it is the safer default.
Postal ships more often: 3 stable releases in the past year, against 0 for hadoop.
Postal is growing faster right now (+72 stars in 30 days).
hadoop details →Postal details →