Iphone

Started experiencing some strange problems recently. To make things
more clear, let me first explain our setup:

I'm the network admin at a small university. We have two domains here,
xxx.edu and xxx.com. One is for students, the other for faculty and
staff. Both have their own Exchange 2003 servers, which are located on
campus. Both Exchange servers are behind both a Barracuda Spam
Firewall, as well as our Watchguard Firebox. The two mail servers are
on the same physical network, but are seperated by VLANs only.


The problem we've been experiencing is that mail from our faculty/staff
side is either being delayed or not being delivered at all (sometimes)
to our students. In some cases, the mail will be sent, but only after
several hours. In other cases, the mail just sits in the queue in the
faculty/staff email server, until I reboot that server. When the mail
is sitting in the queue, I can try to force a connection with no
effect. At the same time, I can successfully connect via telnet 25 to
the student mailserver from the faculty/staff mailserver.


At this point, the mail to our student server is stuck in the queue,
and rebooting the faculty/staff server hasnt released it. I'm in
desperate need of a fix here! Can anyone help?

Iphone

ya you need to check the dns on the faculty server ,run a few tests looks definitely like dns problem