Change your Battle.net Account email address.

If someone changed the email address on your account, or if you can't remember what it was, we can send you a text to recover your account.

Use this page if you want to update the mailing address for your Battle.net Account.

Have not received gold or items from a CoD (Cash on Delivery) mail.

How to resolve an Internal Mail Error when looting mail.

More information on returned mail

What to do if you get the error "Internal Mail Database Error" when attempting to send mail

What to do if you are unable to interact with received mail from Thaumaturge Vashreen

What to do if you are missing mail from the auction house with items, gold, or both.

Mail can prevent a character from being deleted.