K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2017-07-19T20:29:07.879397Z
K 7
svn:log
V 402
MFC r269550:
r269550 (by peter):

Check gethostname(2) return code - but even if it succeeds it may not
null terminate.

Temporarily use "From: $user@$hostname" rather than "From: $user".
The latter exposes incompatible behavior if using dma(8).  sendmail(8)
(and other alternatives) canonify either form on submission (even
if masquerading), but dma will leak a non-compliant address to
the internet.

END