Hi John Sorry didn't notice your Sp 3 reference, update your sp to the latest one and then see how you go. Cheers Dan -----Original Message----- From: Hough, John [mailto:jhough@xxxxxxxxx] Sent: Wednesday, November 27, 2002 5:14 PM To: 'msexchange@xxxxxxxxxxxxx' Subject: [msexchange] Problem on my exchange server Good morning, 2 days in a row now the Internet Mail Service for Exchange (5.5, sp3) on my server has crashed, generating the following Event (ID 4037) - An exception has occurred which was handled internally by the Internet Mail Service. This may have resulted in a message not being delivered. Code: 0xc0000005 Flags: 0x00000000 Address: 0x0043550a Inter-office email still functions, but no one can receive or send mail outside the office. Anyone know what's causing this? Thanks. ===================== Use the below link for Archvices, and to set your preferences. http://thethin.net/exchangelist.cfm ===================== Use the below link for Archvices, and to set your preferences. http://thethin.net/exchangelist.cfm