Hello, I have Exchange Enterprise 2003 SP2 on Windows 2003. When I checked the "Mailbox" of a particular user through "Exchange Admin", "Last Logged on By" is shown with another user name rather than mailbox owner's user name. Is there something wrong with my Exchange system? Thanks in advance. Kyi

How many of u have rights to access server?Change password then check. -Bpara

Since I figured out the problem on yesterday, I have changed the admin password but it happened on today again. Kyi

Is it peoples usersnames. I.e It's not just a system account is it like the acount you use for backups etc.."Never increase, beyond what is necessary, the number of words required to explain anything" William of Ockham (1285-1349)

Is it peoples usersnames. I.e It's not just a system account is it like the acount you use for backups etc.. "Never increase, beyond what is necessary, the number of words required to explain anything" William of Ockham (1285-1349) It is one of the user names in Active Directory but neither system nor backup account. In fact, it is legitimate user name in Active Directory rather mailbox owner's user name.

It may be a delegated user. Check the user's delegation settings. Good Luck Shaba

It may be a delegated user. Check the user's delegation settings. Good Luck Shaba Thanks for your suggestion. I checked it but there is no configuration in user's delegation settings. Kyi

U go to user property and check is it mention somewhere there. -Bpara

U go to user property and check is it mention somewhere there. -Bpara I know how to go to user's delegation setting. What I meant is that no configuration in there. Anyway, thanks for your suggestion. Kyi

Then create another username with same delegates and login, then see the log ,is it showing right thing? -bpara

Then create another username with same delegates and login, then see the log ,is it showing right thing? -bpara I created a new user and gave delegation to that new user account from my account, also giving the permission to access my "inbox". But, "Last Logged on By" is still with my account name while new user account is accessing my inbox. Kyi

Hi, I recommend you to check the post from Jim in the following thread: "Last Logged On By" in Exchange System Manager http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/7212e10f-789e-42db-ab0f-7535c03fbf68 Besides, you can follow the steps in article below to collect more information for mailbox accessing. Auditing Mailbox Access Using Exchange System Manager and Event Viewer http://www.msexchange.org/tutorials/Auditing-Mailbox-Access-Exchange-System-Manager-Event-Viewer.html More related information to share with you: "Last Logged on By" value shows NTAUTHORITY\System or a cluster account http://support.microsoft.com/kb/816730/en-us Regards, Xiu