Q

How to determine when an Exchange Server mailbox was last accessed by the owner

Microsoft Exchange expert Bharat Suneja explains how to verify when an Exchange Server mailbox owner last accessed his or her mailbox.

In a previous post, someone asked if there were any tools that show when an Exchange Server mailbox was last accessed.

Similarly, I'd like to know how I can determine when the mailbox owner last accessed the mailbox. Do you know how to do this? Are there any components of Exchange Server available via VBScript?

VIEW MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A.

Exchange System Manager does show this information. You can access it by expanding the Mailbox Store -> Mailboxes.

Exchange Server exposes this information using the Exchange_Logon WMI provider. For more details check out the MSDN's WMI reference page on the Exchange_Logon class.

The mailbox owner's log-on info is not maintained separately by Exchange_Logon class or any other mechanism. It is the log-on information of the person who logged on last.

MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A:

This is true, however, what if you have a job that accesses the mailbox, like a Veritas backup service or something to that effect. That throws off your last logged on user and times.
—Mark C.

Do you have comments on this Ask the Expert Q&A? Let us know.

Related information from SearchExchange.com:

  • Tip: Track, monitor and log all email communication
  • Crash Course: A tour of Exchange System Manager
  • Reference Center: Monitoring and logging tips and resources
  • Reference Center: Exchange Server mailbox management
  • This was first published in June 2007
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