AOL blockage

[denny]

Apparently the amount of spam being faked to look like it comes from one of my domains (concretecow.com) is high enough that AOL are going to block all email from that domain. As I don't tend to use my concretecow.com address any more, this isn't a huge problem, but I know that spam is also being faked from my ukfetish.info domain at present, and it would be very inconvenient if that domain were to be blocked from reaching AOL - many of the site's users are AOL customers, and a block would prevent the site emailing out passwords etc.

Does anyone have any suggestions on actions I can take to try and prevent this problem?