Of course after I post this email, I stumble on what I think is the answer.
Is it related to caching of secondary exchange mailboxes that are open in the users profile? http://www.msoutlook.info/question/561 From: [email protected] [mailto:[email protected]] On Behalf Of Jimmy Tran Sent: Monday, May 05, 2014 5:07 PM To: [email protected] Subject: [Exchange] Why is OST so much larger than Mailbox size? I have a user who has a 7GB mailbox size but yet her outlook OST is 48GB. User is has Outlook 2010 and using Outlook 365. Any idea's? Google isn't giving any good answers. TIA, Jimmy
