The following steps can help you resolve a full email storage issue:

1. Delete Unwanted Messages: Delete all the messages that are no longer needed.


2. Organize Your Inbox: Sort out your messages into different categories and sub folders for easy access.


3. Archive Messages: Compress and move your old emails to an external hard drive or storage device.


4. Check Inbox Storage Quota: Check your email settings to make sure that you are not exceeding your storage limit.


5. Empty Deleted Items Folder: Remove any messages stored in the ‘Deleted Items’ folder.