On 03/19/2015 03:05 PM, Tara Natanson wrote:
Not sure if this is normal behavior I just haven't come across before or something new but it seemed like it might be interesting to some folks here. A Barracuda device we are sending to is dropping the connection after end of DATA so we are retrying the message. This happens a few times before the message finally does get through. The interesting part is that each time the connection drops after DATA, we are seeing a click and an open (downloading of images) from that message. I've seen AV software do clicks/opens before but it usually accepts the message first! This doesn't seem to be universal across all Barracuda destinations we send to so I'm guessing it is some individual setting.
Exim with clamav (for example) configured in some ways is also able to do that. However, if it drops the connection, it should not accept it afterwards, the behavior should be repeatable. That said, maybe it takes too much time scanning the message, and then drops the connection due to a timeout somewhere.
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ mailop mailing list [email protected] http://chilli.nosignal.org/mailman/listinfo/mailop
