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Exchange 5.5 max mailbox size limit?

Posted on 2005-05-12
Medium Priority
Last Modified: 2008-01-09
We are running Exchange 5.5 Enterprise Edition and have a 33GB information store, my question is if there is a mailbox size limit.
While I know that there should not be a database size limit I have not found if there is a mailbox size limit.
The reason I ask is that I have a few people with mailboxes over 3GB and one that has surpassed 4GB.
Evidently the admin does not like 4GB, when you look up the size of his mailbox it went to 0k once it broke the 4GB barrier.
Question by:harlemit
1 Comment

Accepted Solution

ITCEXCHANGE earned 1000 total points
ID: 13992297
There is no mailbox size limit. But, keep in mind that large mailboxes can cause errors in the database. If there is a 4.0 Gb mailbox in the private information store , if you were to merge that out to a pst file, you would be looking at about an 8.0 GB pst file. PST files have a limit of 2048 MB's.  

Since Exchange uses MAPI as do PST files to transfer the mail I would suggest keeping the mailboxes under 2.0GB's with exchange 5.5



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