FuBar MailExpiryFu is a FuBar addon that will display when the oldest mail item is due to expire for your alts, and how many items are in each mailbox.
It will be useful for making sure you clear out your mailbox before items get returned to the AH or alts.
You must visit the mailbox for an alt before it can start keeping a track of the oldest mail item.
MailExpiryFu will detect mail being sent to alts.
MailExpiryFu will try to differentiate between regular mail, and pending AH sales.
MailExpiryFu will try to detect incoming mail and increment counters accordingly.
Whilst the addon was originally developed as a FuBar addon, FuBar has been made an Optional Dependency, and it will operate quite nicely with Fubar2Broker, and a LDB bar or launcher like ChocolateBar.
The author has made one attempt to upgrade the addon to Ace3/LDB, but failed miserably. He's going to lick his wounds for a while, and will make another attempt when Ace2 or any of the other components used (Tablet, Crayon, Dewdrop, FubarPlugin) become horribly broken. When he does make the replacement, there will probably be a name change (to MailExpiry), and very little support for a migration of the existing MailExpiryFuDB, and a change to things like LibQTip (instead of Tablet, Crayon and Dewdrop).