Spam Problem

Hello,
I maintain a few small non-profit websites at no charge and they use FSCF. Recently one of them has been receiving spam – posts/responses with lots of spam hyperlinks in them.

A $50 or even a $5 per month akismet account would be out of the question. There is no need for anyone using this contact form to have hyperlinks in the message. Is there a straightforward way to simply prevent hyperlinks in submitted contact forms?

(I could do some coding for this myself but I thought there’s probably a straightforward way to do this already since I’m undoubtedly not the only one with this problem).

Thanks in advance for any help.

http://wordpress.org/extend/plugins/si-contact-form/