On Thu, Aug 22, 2024 at 03:03:48PM +0200, Illya Meyer wrote: > Hi there, > > affects: Manual page "forward" in OpenBSD 7.5. > affects also: Error message from sendmail. > > Please correct the EXAMPLES section in "man 5 forward": > > ---- Schnipp 8< ---- > EXAMPLES > The following file forwards mail to "u...@example.com", and pipes the > same mail to "examplemda". > > # empty lines are ignored > > u...@example.com # anything after # is ignored > "|/path/to/examplemda" > ---- Schnapp 8< ---- > > because piping is no longer allowed (at least, I think so :-)) > > from Changelog 7.4 -> 7.5: https://www.openbsd.org/plus75.html: > > ---- Schnipp 8< ---- > Disallowed custom commands and file reading in a .forward file, allowing > only forwarding addresses and users, so that smtpd(8) can't execute > custom commands set by root in a .forward. > ---- Schnapp 8< ---- > > It would be very nice to have a better error message in sendmail. > > "sendmail: command failed: 451 Temporary failure" > > is of cource correct, but not very clear, if a pipe is in a .forward-file. > > Thank you and have a nice day > Illya Meyer >
hi. i've added a note to forward(5) detailing that "|" and ":include:" are disallowed for root. jmc
