When the patch went live each character got two mail messages: a story message and a regular message. The regular message apparently counted toward the maximum of 10 player-sent mail messages. Unlike previous mail messages like that, however, instead of expanding your box above the limit of 10 messages, it cannibalized existing mail messages. This was really bad if you just logged into each character to fill your wallet and then checked your mail to see a bunch of your mail was erased.
Is there a way to recover the mail messages overwritten by the patch? I lost several messages full of exotics that my bank was too full to carry coughbecauseofaccounttokens.
