nanog mailing list archives

Re: RFC 1918 addresses


From: "Matthew James Gering" <mgering () ricochet net>
Date: Sat, 31 May 1997 22:02:31 -0700


Exposing an RFC 1918 private address in, say, a "Received:" header in
e-mail
is less of a problem, though the spammers who do it are actually better
able
to cover their origins, there's no way to prevent it and no normal damage

from doing it.

Unless the SMTP server used to proxy email through a firewall is able to
strip headers, it's unavoidable.
I would like to see that feature added to SMTP servers, however, I do hate
letting internal host names and addresses out.

        Matt


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