I have an odd situation. I am running Windows 2003 Server and Microsoft Exchange 2003. Some users are not able to send mail either internally or to the outseid world. They seem to be able t receive mail from others locally and from the outside, and they are able to reply to a email that they get and the mail will be returned. There are no indications on the exchange server that the mail is not being sent. You can go into Outlook and you can see in the sent folder that the message was sent. I check the queques on the exchange server and there is no indication that mail is being held. I do seem to have a lot of mail in my outbound queque, but I checked the queque for the to see if the mail that was supposedly being sent was in the queque and it not ... ANY HELP WOULD BE APPRECIATED. I AM AT MY WITS END