Freedom251 › Email Server Software
KumoMTA

Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Community | Free software access · Community Discord support | On request |
| Silver sponsorship | All prices are per billion messages per year · Business-hours support · Email and portal support · Shared semi-private support Discord | $5,000 a year |
| Gold sponsorship | All prices are per billion messages per year · Extended business-hours support · 24/7 critical issue support SLA · Email and portal support · Private support Discord | $10,000 a year |
| Enterprise sponsorship | 24/7/365 support · 24/7 critical issue support SLA · Email, portal, and telephone support | On request |
As kumomta.com lists them, read 4 Oct 2026. The maker's own page has the final word.
Where KumoMTA stands on Freedom251
- Email Server Software#22 of 33