> Rick Moen <rick at linuxmafia.com> 33 lines of wisdom included:
> > Er, while the point is valid for the more _general_ case of security
> > testing, when you're talking specifically about mail relaying, you can
> > do basic testing (which is pretty much all you should need) right from
> > localhost. And that's generally what I do.
What caught me out was using Sophos Anti Virus: it passed the emails to Postfix, which saw them coming from localhost, which effectively bypassed Postfix's anti-relaying rules.
Ciaran
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