I just had to disable new account signup at mymacmail.com because I was getting too many requests to process. It will probably take me a few days to catch up. It must have been mentioned somewhere – I normally get 2-3 requests a day, but today I got 23. If this continues, I will have to stop taking new POP3 account requests, since I would like to limit it to less than 200 POP3 accounts, although I will continue to accept redirect accounts only.