smtp(1) on OpenBSD
The text 44e3313f4d74, as OpenBSD 8.0-current (2026-11-01), OpenBSD 8.0, OpenBSD 7.9, OpenBSD 7.8, OpenBSD 7.7, OpenBSD 7.6, OpenBSD 7.5, OpenBSD 7.4, OpenBSD 7.3, OpenBSD 7.2, OpenBSD 7.1, OpenBSD 7.0 shipped it. The page shows this text now.
Simple Mail Transfer Protocol client
Flags it lists
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-C -
-F -
-H -
-T -
-a -
-h -
-n -
-s -
-v