Fake domains - revisiting..

Hendrik den Hartog hden at kcbbs.gen.nz
Wed Mar 7 20:51:55 CET 2007


We use Mailscanner on our schools firewall.

We have the not uncommon issue with mail entering with fake domain names, that is,
mail pretending to come from our domain. (How on earth they glean the email names to
use is mind boggling to me?) 

I've read a few historic threads RE: this, but I'm after the current recommended 
procedure to deal with this issue.

Running CentOS 3.3/sendmail-8.12.11-4

I've added our domain name to sendmails access database (From:OurDomain.name.com), but
suspect this may be a crude option to take - although it seems to work?

Advice, Feedback appreciated...


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