How would you go about submitting a reinclusion request for a site that may have been banned from MSN unfairly?
MSNdude says that you can visit http://support.live.com/eform.aspx?productKey=wlsearch&ct=eformts and ask for reinclusion.
Forum members at WebmasterWorld are frankly disappointed in MSN's reinclusion procedures. From what others say, if you've been wrongfully banned, you're forever condemned.
Forum discussion continues at WebmasterWorld.