Check out the link below http://www.msexchange.org/tutorials/Logging_the_SMTP_Service.html From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Allen, Christine Sent: Monday, March 26, 2007 11:27 AM To: 'exchangelist@xxxxxxxxxxxxx' Subject: [ExchangeList] SMTP Logging-Exchange 5.5 question I need to log all smtp traffic that goes through a Exchange 5.5 server. I can't remember which option under diagnostic logging I enable to log this. Does anyone remember? Christine Allen Systems Engineer Electric Insurance Company 75 Sam Fonzo Drive Beverly, MA 01915 phone: 978-524-5612 fax: 978.236.5612 christine.allen@xxxxxxxxxxxxxxxxxxxxx <http://www.electricinsurance.com> http://www.electricinsurance.com