Swell. For the third day in a row, I've stopped receiving email and I can't send. At least this time, the tech support rep was actually able to determine the problem: one of the hard drives on the server is full. He promised that it would be taken care of once and for all (but until it's fixed for good, I still have no email).
And I jinxed myself by being happy about no hold music. Now they have some. Christmas carols.