[Mimedefang] Adding support for learning our addresses
Damrose, Mark
mdamrose at elgin.edu
Tue Jan 31 08:01:15 EST 2006
> -----Original Message-----
> From: Philip Prindeville
> On the other hand, if, like me, your local address *is*
> unroutable, then it means that you're behind a firewall, and
> need to do a gethostbyname() on your own name to figure out
> what your outside address is (i.e. what the address of your
> firewall is that proxies for you).
That wouldn't work on my system, and many others. If you do a
gethostbyname() you'll get the local unroutable address back -
since the internal and external DNS for my namespace are maintained
on separate servers.
If you are using NAT, then in order to accept mail to
postmaster@[ip.add.re.ss] (see RFC1123 Section 5.2.17), you'll need
to include [ip.add.re.ss] in /etc/mail/local-host-names. Why not
read that file?
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