OpenSMTPD pricing
1 plan read from opensmtpd.org
OpenSMTPDFree FREEServer-side SMTP implementation; runs on supported Unix systems Read 7 Oct 2026 · opensmtpd.org
In short
- OpenSMTPD has a free plan (OpenSMTPD).
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| Courier Mail Server | — | Yes | No |
| Axigen | — | Yes | Yes |
| mailcow | €8.90/mo | Yes | No |
| Citadel | — | Yes | No |
| IceWarp | $1.35/mo | No | Yes |
| iRedMail | $0.83/mo | No | Yes |
| MailEnable | — | Yes | Yes |
| Apache James | — | Yes | No |