Need to block gmail and hotmail

Is there a module that will block users trying to set up using a gmail or hotmail accounts.  I run a professional community where 99% of users will have a corporate email account.  The only people using gmail and hotmail are spammers.  

I have a few other pieces of security to prevent spammers based on location but I still get a few signing up each day.

Yes you can hardcode to block email accounts. if you search the forums for "spam" you will find out how.

But can I hardcode to block all email accounts that are @hotmail and @gmail and what ever else I want to block.  So I want to block email domains I guess.  I dont want to block individual domains as that is pointless.

Yes. Covered in the forums.

http://www.boonex.com/forums/topic/How-to-restrict-some-of-email-providers-on-registration.htm

Also this post might have some useful info

http://www.boonex.com/forums/topic/spam-spam-spam-spam-IDEA-.htm

Thanks guys.  Have made the changes and hopefully I will be fine.