I have a user who is on our new Exchange 2003 server whose mailbox has just gone over 1GB in size. As soon as he went over the 1GB mark he started getting messages from the System Administrator saying that his mailbox was over the size limit. Now when he tries to send mail he gets the Outlook 2003 Mailbox Management box popping up telling him that his mailbox is over limit and he needs to cleanup or archive before he can send.
I have no limits set on any of the mailbox stores in our Exchange 2003 organization, so I am confused as to why this user is experiencing this problem. Could it be some sort of residual setting carried over from when he was on our 5.5 server, which does have mailbox size limits in place?
Any help would be much appreciated.