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.
To a certain extent that is already
On Wed, 26 Feb 2014 08:30:35 -
Jon Rowlan jon.row...@sads.com wrote:
It just makes sense for me to RBL check the sending servers because
that is where the problem is and indeed we are finding these sending
servers listed on RBL servers - ours does not seem to get blacklisted.
MIMEDefang
Leading question: Do you test outbound email for spam?
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
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
I'd like to get MD to email an alert to postmaster when one of my
customer relay servers is featured on an RBL list. I use
MD/Clam/SA/Sendmail.
Currently if I allow a relay from a customer server, no RBL check is
done and it can be some time later that I discover I have been spammed
through.
Is
On 2/22/2014 4:54 AM, Jon Rowlan wrote:
I'd like to get MD to email an alert to postmaster when one of my
customer relay servers is featured on an RBL list. I use
MD/Clam/SA/Sendmail.
Currently if I allow a relay from a customer server, no RBL check is
done and it can be some time later that I
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