All, Today I have been receiving a lot of this error message. The company has not has this problem before. I have rebooted the server twice today. We are running Windows 2000 Advanced Server, and Exchange 2000 SP2. I have checked DNS entries for several of the domains we are having problems sending to, but everything seems ok. MX records are in tact, A records are in tact, and when I telnet to the host, port 25, I can sucessfully enter SMTP commands. Any help/suggestions is/are greatly appreciated. ------------- START ---------------------- Your message did not reach some or all of the intended recipients. Subject: RE: <SUBJECT HERE> Sent: 4/18/2002 2:55 PM The following recipient(s) could not be reached: 'Doe, John' on 4/18/2002 2:55 PM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <mailserver.company.tld #5.5.0 smtp;550 Unable to relay for John.Doe@xxxxxxxxxxxxxxxxxx> ------------- END ---------------------- Brandon Lockhart Information Technologies Specialist o: 410.685.6100 x171 f: 443.263.2102 c: 443.506.0699 getintegrated.com, inc. 616 water street, suite 329 baltimore, md 21202 ------------------------------------------------------------ This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.