Yes, yes it does. In fact, we occasionally get replies back from folks thanking us for the Birthday wishes. We also get notifications when folks email address is no longer valid if the system attempted to send them a message. I'll send a message to get it updated and if it doesn't get done within a couple of days I remove their TP access and require them to validate their eMail address before they get their access back. I'm mean that way.
That's only because you know we're watching you REAL close. <evil grin>