If you are using a vodamail account for your member profile on TFSA, I have a suggestion to make sure your email messages get through to you - get an email address at another service providor (such as gmail).

I'm getting quite a few bounces on vodamail accounts from active members who have not had problems previously. Here's the crux of the error message:
Recipient address rejected: User
unknown in local recipient table (in reply to RCPT TO command)
Clearly vodamail is experiencing technical problems.

What particularly concerns me is looking at the accounts involved, I see quite a few involve your company's name. It doesn't take much of a leap to think you might be relying on this email service for business - and by the looks of things, your mail might not be arriving as reliably as one might hope.