Can you please send me a PM with the usernames and e-mail addresses that did not work?
It could be that your ISP has a block. Spam filter maybe? For example, there has been a couple of times that I tried to send an e-mail to my work e-mail address and it did not go through due to a spam filter.
As for receiving an e-mail from your husband, I personally do not recall any e-mails. I do get a lot of spam, so if I don't recognize your name or the title doesn't have "E-Budo" on it or something similar, then I delete the e-mail.
I would suggest that your husband use a hotmail account to register.
George Kohler
Genbukan Kusakage dojo
Dojo-cho