[Mimedefang] Can I get MimeDefang to email alert me when a customer server is on an RBL

WBrown at e1b.org WBrown at e1b.org
Tue Feb 25 08:06:12 EST 2014

Jon wrote on 02/25/2014 04:15:31 AM:

> I use sendmail/md/sa/clam to test for inbound, I actually don't know
> whether any checks are performed on the outgoing by this combination of
> systems, I would have thought that some check are made on mail going out
> as well as in.
> The systems relaying are a disparate bunch of customer servers. Windows
> mainly.
> Occasionally we find a compromise and have to clean up but I am looking
> for ways to clean up far sooner and if possible to fix and block an
> impending flood before or as it happens.
> What I realised is that an entry in my Access table that allows relay
> though my servers does not check RBL.

If the spam is being relayed out through your filter, your IP address is 
likely to be the one that will get blacklisted.  It will be seen as the 
source of the spam.  You might want to look into rate limiting your 
customers as well as scanning the messages.

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