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m : mimedefang@lists.roaringpenguin.com 9 June 2009 • 11:28PM -0400

Re: [Mimedefang] Blocking Dictionary Attacks
by Les Mikesell

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Matt Garretson wrote:
> afo cliff wrote:
>> Thanks for the info.  It mentions using the -t flag ... however, I
>> start mimedefang with "service mimedefang start" so I don't have any
>> control over the flags that are being used.  
>
>
> It sounds like you have Fedora or a Redhat variant?  There should
> be /etc/sysconfig/mimedefang which you can edit as you like.
>

But, if you have defined everyone in virtusertable with default rejects,
sendmail will process invalid recipients faster than mimedefang can.
You might still get a few instances where where a message comes in with
a large number of invalid recipients that makes it obvious spam but it
will still be accepted for a small number of valid addresses.  You might
be able to figure that out with some work in filter_recipient - or just
hope that your other checks catch it.

--
   Les Mikesell
     lesmikesell@gmai...
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