RE: [Exim] FW: Defending Against Rumplestiltskin Attacks???

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Author: Ilan Aisic
Date:  
To: 'Mike 'Fraz' White', exim-users
Subject: RE: [Exim] FW: Defending Against Rumplestiltskin Attacks???
Oh, I see your point and you're right.
However, I probably don't understand how you configure Exim if the "catchall" is last, I don't see how you send a bounce
message ( 550 Unknown user) to a non-spammer who made a typo in the addressee name?

--
Ilan Aisic


> -----Original Message-----
> From: Mike 'Fraz' White [mailto:fraz@smartowner.co.uk]
> Sent: Sunday, May 09, 2004 5:22 PM
> To: 'Ilan Aisic'; exim-users@???
> Subject: RE: [Exim] FW: Defending Against Rumplestiltskin Attacks???
>
>
>
>
> > -----Original Message-----
> > From: Ilan Aisic [mailto:ilan@pointer.co.il]
> > Sent: 09 May 2004 17:15
> > To: 'Mike 'Fraz' White'; exim-users@???
> > Subject: RE: [Exim] FW: Defending Against Rumplestiltskin Attacks???
> >
> > I should probably have mentioned that I run Exim 4.32 + Exiscan +
> > SpamAssassin + ClamAV. How don't see how the 'catchall'
> clause in the
> > Exim configure file can shorten the session with the
> offensive remote
> > MTA or lessen the adverse affect on our bandwidth in case of a
> > dictionary attack.
> >
> > --ilan
> >
> Hi Ian,
>
> Admittedly it won't stop/reduce the incoming bandwidth but
> it saves your system having to send out an unknown/high
> number of bounce messages.
>
> --
> Mike 'Fraz' White
> www.smartowner.co.uk
>
>
>