mailwrapper(8) on FreeBSD
The text 73077f0277ef, as FreeBSD 16.0-CURRENT (2026-10-27), FreeBSD 15.1-RELEASE, FreeBSD 15.0-RELEASE, FreeBSD 14.5-RELEASE, FreeBSD 14.4-RELEASE, FreeBSD 14.3-RELEASE shipped it. The page shows this text now.
invoke appropriate MTA software based on configuration file