LOL it is nearly impossible to ban all the possible free E-Mail places out there, because there are so mind-numbingly many that it's insane. I could right now, without thinking hard, post a hundred different E-Mail addresses all free that would undoubtably work fine in registering to these forums.
For example, I myself use
http://wi.zzn.com for web-based E-Mail, it's free, I highly doubt it's been banned here, etc etc etc.
Not to mention all the ones I could use mail forwarding with... make a free website at Virtualave.net and suddenly I have as many E-Mails as I want.
Anything@mysite.virtualave.net and
AnythingElse@mysite.virutalave.net all would forward to anything I wanted it to, including hotmail or yahoo or zzn. And virtualave is definately not the only site like this out there.
Then again, now that I think about it, you guys can just stay up-to-date with people that sign up with your forums. Just every so often look through the E-Mail addresses people sign up with, find a few you've never heard of before, and go to the site to see if they are free or forwarding or what... then add that mail provider to the ban list.
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