#3 - May 8, 2009, 1:22 p.m.
You're welcome to mail heirloom (bind on account) items using the in-game mail system. Any character on the same account that you can send mail to is eligible to receive this item. In other words, if you transfer a character who has this item equipped, you're welcome to transfer the item freely between characters on the new realm or account.
Please be aware, however, that you are unable to transfer this item across faction lines.
Let me know if you have any further questions. :)