rmail - handle remote mail received via uucp
rmail user ...
Rmail interprets incoming mail received via uucp(1), collapsing ’’From’’ lines in the form generated by mail.local(8) into a single line of the form ’’return-path!sender’’, and passing the processed mail on to sendmail(8).
Rmail is explicitly designed for use with uucp and sendmail.
uucp(1), mail.local(8), sendmail(8)
The rmail program appeared in 4.2BSD.
Rmail should not reside in /bin.