We seem to be having a problem as of late. When anyone tries to send an outgoing email, it seems to take 10-20minutues for the message to be sent by Exchange. I don't seem to be experiencing a problem with incoming mail. I can send any number of test emails in from the outside and they all arrive very fast. Its just the outgoing that seems to be affected. I do notice that if I go to the SMTP queue there are a lot of entries for what looks like undeliverable return messages from postmaster. It would appear that most of these domains would be spam-related. I believe a lot of these are probably incoming spam for users that are no longer with the company and exchange is trying to send NDR messages to non-existent spam addresses. Any ideas how I could clean this up a bit? Also would all of these extras cause the delays in regular outbound email? Any help/advice would be appreciated. Regards, Mike Liddekee Network Engineer Humco Holding Group, Inc. 7400 Alumax Dr. Texarkana, TX 75501 Ph: (903) 831-7808 ext 697