delayed messages

[Christopher Hobbs]

I've noticed that users from a couple of domains that try to send mail to our
domain recieve an email back with the subject "Delivery Status Notification
(Delay)"  and the message body:

--BEGIN SNIP--

This is an automatically generated Delivery Status Notification.

THIS IS A WARNING MESSAGE ONLY.

YOU DO NOT NEED TO RESEND YOUR MESSAGE.

Delivery to the following recipients has been delayed.

--END SNIP--

Followed by the intended recipient and the original message.

I'm not noticing any messages concerning these recipients in the logs.  Anyone
have an idea of what I can do to resolve this?

I'm headed to google after I send this cry for help.

Thanks!
cmh
-- 
Christopher M. Hobbs
Systems Technician, City of Siloam Springs
chobbs at siloamsprings.com, (479).524.5136