I am running Exchange 2003 SP2 in an Active Passive Cluster on Windows 2003 SP1 Enterprise.
A few months ago I moved my CEO's mailbox from "mailbox store" with limits of about 600 MB to a new information store "Executives" with higher mailbox limits of 1 GB.
I then lowered "mailbox store" to about 500 MB. Today, my CEO was getting messages that he was over his size limit (the email message said he was over the limit of 600 MB, which is weird because 600 MB is no longer set in any of my mailbox store policies) I verified that his mailbox was in the "Executives" mailbox store which has a limit of 1 GB. There is one other user in the "Executives" store. She has a 700 MB limit but was not affected.
Why would his mailbox still be limited to an old policy that no longer exists, if he's in a mailbox store with a 1 GB limit? Is his mailbox somehow carrying over some store limits? Can I check this? I am thinking about oepning up a case with Microsoft.