Re: [Exim] Blocking sobig.f

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Author: Wakko Warner
Date:  
To: Giolla Decair
CC: exim-users
Subject: Re: [Exim] Blocking sobig.f
> > I've noticed lots of them EHLO as "ED". You could check to see if there's a
> > dot in the HELO name (pretty much all legit mail EHLOs as a FQDN or is that
> > FQHN =)
> > drop    message = We do not accept mail of this kind
> >     condition = ${if match{$sender_helo_name}{ED}{yes}{no}}

>
> Do you have a gernalised version of this which checks for a dot in the
> HELO name?


condition = ${if match{$sender_helo_name}{\N^[^.].*\.[^.]+$\N}{no}{yes}}

basically this says "Must contain a dot but the first and last character may
not be a dot". From expereince, this will stop all sobig.f mails.

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