| Lightweight but featured SMTP daemon from OpenBSD | |
| https://www.opensmtpd.org | |
| opensmtpd-7.4.0_p1 | ISC BSD BSD-1 BSD-2 BSD-4 |
| download~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86 | gentoo |
| opensmtpd-7.3.0_p1-r1 | ISC BSD BSD-1 BSD-2 BSD-4 |
| downloadamd64 ~arm arm64 ppc64 ~riscv x86 | gentoo |
| opensmtpd-6.8.0_p2-r2 | ISC BSD BSD-1 BSD-2 BSD-4 |
| download~amd64 | lanodanOverlay |