[Mimedefang] Blocking Dictionary Attacks

[Les Mikesell]

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 at gmail.com