At 13:42 22-10-2008, Burton Windle wrote:
Basically, we are seeing denied traffic on our firewall. The source of the traffic is the mail servers we are sending to; it is coming FROM their TCP/25, and going to some random high-level TCP port on our sending host. If I didn't know better, I'd think it was denying part of the three-way TCP handshake, but the email is flowing, and the mail queues are low.
The traffic is not unusual given that you are originating the connection to the remote mail server. The above behavior may be caused by a misbehaving firewall.
Regards, -sm
