[Esd-l] Selective filtering
petchema at concept-micro.com
Fri Jul 25 06:07:10 PDT 2003
Le Fri, 25 Jul 2003 06:47:15 -0400, Mark Wendt <wendt at kingcrab.nrl.navy.mil>
a écrit :
> Had a question posed to me recently, and haven't had much luck
> finding it in the docs. Can we filter selectively on domains as to
> whether or not a certain file type passes or gets rejected by the
> ESD software?
Just modify settings conditionnally with one or more procmail recipes
before procmail-security gets called. For example:
MANGLE_EXTENSIONS='less strict list'
(Modify to your taste.)
Think twice about security implications. Source email can be forged.
I check both the sender domain and that the email has gone thru some
expected hop. "Received:" headers can be faked too, so it ain't
perfect, just a bit less likely to get bypassed by worms.
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