Items or gold left in the mailbox for too long is deleted
Information on how long it may take for different kinds of mail to be delivered.
How to resolve an Internal Mail Error when looting mail.
How and when BoA or Heirloom items be sent to another character on the Blizzard Account.
More information on returned mail
Troubleshooting steps for missing Auction House mail reports
Phishing scams can take many forms—fake websites, suspicious emails, and threatening in-game whispers are the most common types.
Troubleshooting World of Warcraft in-game mail issues.
Gold and items cannot be sent to another realm or faction.
Troubleshooting mail sent without adding a CoD.