All my gear and gold is gone TBC-Outland

Today when i logged on my level 70 priest, at 14:00 server time, i have found that all of my gear and gold was gone. I have found my char next to a mailbox, so im guessing the gold has been sent with all of the clothing materials etc. Last time I played was yesterday noon, i havent shared any account information with anyone. I really hope theres something you can do to help me get my stuff back, let me know if you need any more information.

Thanks in advance.