If you are looking for wow send mail across serverPlease check the link below:
Gold and items cannot be sent to other kingdoms or clans … Account binding items that can be sent to characters in the same account. even across the kingdom
To send mail across kingdoms You must enter the character name, the hyphen “-“, and the server name without spaces: Character-RealmName. Formatting…
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You can also send the BOA gear cross realm to groups … type the name of the character followed by a dash containing the server name … Vanilla WoW Wiki.
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On classic or retail servers if classic You can’t send crossrealm anything, for retail it should work if you type like this, for example Matts…
You can’t send gold or items to characters in realms or other factions, only … can you send cross-server email in WoW Classic?
To send mail across kingdoms You must enter a character name. followed by the hyphen “-“ followed by the name of the kingdom without spaces across the realm …
Can I send items from one character to another? … If the default scope of the server is Korin Tor and you join and buy donation points and send it there and search …