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.