[Supaman771]

I like the idea of doing trades by mail, it would allow players in different timezones or with hectic schedules to trade more easily (not having to be on at the same time). Coupled with the new advertisement system you could make full out trades in minutes and not have to sit online for hours massing or waiting for a player to come on.

If I recall, mailboxes (at one time) could handle money data or something of the sort with the old mall; if you logged out or went into observer mode and sold an item, the money would be delivered to your mailbox.
So I don't see why it couldn't be done.

Sounds legit.