did you see this thread:
http://forums.microsoft.com/msdn/ShowPost.aspx?PostID=18139

rgerbig at 2007-9-9 >

First, you get the Pending Limit Exceeded because the system only allows a very limited number of outstanding email verifications against a given email address. Since you're not receiving the email (perhaps because of firewall issues?), it's kind of hard for you to verify. There should be a Continue button on the page which you should use.

Otherwise, to clear your limit, use the Contact Us link from the page to request them to clear the email verification limit for your email address. Afterwards, you can try going to http://profile.microsoft.com , log in with your Passport and and make sure your email address is on file there. If all is good, go through the registration prccess again.

If all fails, send mail to VSRGHLP@microsoft.com and include the full URL for the registration site (this is the URL that you'll see in the address bar after you sign in with your Passport.

Hope this helps.
kathy

KathyA at 2007-9-9 >