How to resolve an Internal Mail Error when looting mail.
Information on how long it may take for different kinds of mail to be delivered.
Gold and items cannot be sent to another realm or faction
Troubleshooting World of Warcraft in-game mail issues.
Phishing scams can take many forms—fake websites, suspicious emails, and threatening in-game whispers are the most common types.
How to transfer gold or items left behind from a class trial character that is locked.
Information on the Character Transfer service in World of Warcraft.
Information on unlooted items and The Postmaster.
How and when BoA or Heirloom items be sent to another character on the Blizzard Account.
More information on returned mail