It would be nice to have an ignore list of external
hosts that are expected
to send mail as the domain DK is signing for to avoid
external host foo.example.com attempted to send as
Since it is logged as the offending hostname, the
ignore list should be
a list of hostnames to ignore, though IP addresses
would be nice as well.
Extra credit for some sort of matching (i.e.,
*.example.com or 192.168.*).