Exim vs Postfix
Exim
exim.orgPostfix
postfix.orgSide by side
| Figure | Exim | Postfix |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Mail Server Software | 8.1 (#9) | 7.2 (#30) |
| Filtering | Users can use Sieve filters or Exim’s own filter language, which the manual describes as more powerful than Sieve. | Postfix supports content filters and the Sendmail Milter mail-filter protocol. |