IWU email accounts are limited to the following sizes:
View articles on reducing email size here.
Note: When the first limit is reached, a notification email message will warn the owner that they are over the size limit, but the owner will still be able to send and receive messages. If the mailbox continues to grow and reaches the second limit, the owner will be unable to send any email messages, but will still receive incoming messages. Once the mailbox reaches the third limit, all incoming messages will be returned to the sender and the account will be unusable.