How to: Unable to delete message in web mail View The Full Article SYMPTOMS: Canand39t use Clemsonand39s web mail client to clean out messages because user has exceeded disk quota or does not have enough space left to delete message. RESOLUTION: Why: By default, web mail tries to move the message to trash. Thereand39s no room for it, so it gives an error message. Solution: Change OPTIONS to immediately delete the message instead of using the TRASH can. 1 Click on OPTIONS link 2 Click on FOLDER PREFERENCES link. 3 Under SPECIAL FOLDER OPTIONS change Trash Folder setting to Do not use trash. 4 Click on SUBMIT button at bottom of page. 5 Now switch back to the INBOX and delete your messages.