I'm on TMo's BIS, and I've got a problem where one of the email addresses on it is a Google Hosted Domain (so basically GMail), and 2-3 times a day I get the same set of old messages delivered to my Inbox. They're about 2-3 weeks old, and it's the same ones every time, around 30 or so. I'm not doing anything with those messages (like unarchiving 'em), they just keep getting pushed out to my device for no good reason.
Any idea what's happening? I've experienced that before on a smaller level with other email accounts, that odd BIS bug that happens here and there, but this is clearly different, and pretty annoying.