Stop user signing up with a particular email address?

[HostDirectory]

Hi,

I was recently contacted by microsoft because someone is signing up to my forums using one of their email addresses, they have asked me to remove these users from the forums.

Can i do anything in the control panel to stop users from signing up with this email address? Each time microsoft recieve a confirm sign up email which is anoying them.

Is there a way to provide microsoft with the ip addresses used when the user has been trying to do this?

Any help appreciated.

[Jake Bunce]

Admin CP -> vBulletin Options -> User Banning Options -> Enable Banning Options

User IPs are visible on the user profile pages in the:

Admin CP -> Users -> Search for Users