To gift an item, click Gift instead of Buy Now on the item’s page.
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
Phishing scams can take many forms—fake websites, suspicious emails, and threatening in-game whispers are the most common types.
Troubleshooting steps for missing Auction House mail reports
Troubleshooting World of Warcraft in-game mail issues.
Troubleshooting mail sent without adding a CoD.
Gold and items cannot be sent to another realm or faction