Short answer is "no" according to my friend who is an Exchange MVP. He says he doesn't have the time to give the long answer. Thanks Carl Webster Consultant and Citrix Technology Professional http://www.CarlWebster.com <http://www.carlwebster.com/> (check out the changes coming to my website) From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Steve Snyder Subject: [THIN] OT: OWA authentication Would anyone happen to know if when a user accesses OWA 2003 does it update the lastlogontimestamp attribute on their AD account?