Hi there...
My sg account name is funchords -- as of mid-December, I'm not receiving any mail at my sg addresses. All of my addresses protect the same account.
This happened once before. I don't know if the current problem is the same.
Here is the story with the earlier problem: I had asked about using my domain with with sg, and you added it to some kind of domain file. But ultimately it didn't work out. Several months later, my sg addresses stopped working. You were able to clear it up. That was 9/6/06.
Thanks for your help!