The prominent reasons for the filling of Exchange mailbox are duplicate items, large-sized emails, and their attachments. Why is the Exchange Mailbox Full?Īn Exchange-connected user mailbox cannot accommodate more messages than the mailbox quota allocated by the Exchange administrator for it. Here, we will go through the causes of this issue and the ways to deal with it. And IT support team may have to ask the email client users to delete unnecessary emails and attachments or to archive their mailbox data.
Outlook for Mac accounts connected to Exchange may sometimes get error messages stating that their Exchange mailbox is full.
