The SRB is something that Lilli put together and maintians for us out of the goodness of her heart. It is a FAVOR and not a right. Don't be miffed with her - she has had to make some hard decisions about how to manage the board because she has very little free time to maintain it. One decision she made was what addresses she would allow in - she has blocked free addresses as well as those that have a lot of spammers - because this is something she does for us AS A FAVOR in what little spare time she has. She gets no financial compensation for the SRB, she isn't an FO supplier or anything like that - just a soaper who shares her resources and knowledge.
If you don't have an address that works, borrow a friend's. I think in 10 years of belonging I've gotten 2 emails from her. One confirmation email (thanks for joining, click here to confirm your membership) and one telling us she had moved the site.