Restrict HTML in text areas Contact Form 7

Hello. I am using your plugin in conjunction with Contact Form 7. My client is getting links submitted through a typical “Your Message” text area of their reservation and contact forms.

These URLs that are being submitted contain malware, spam and/or phishing…. basically just hacker crap. Is there a way to restrict the use of HTML in that text area> Wither through your plugin or Contact Form 7. Thank you in advance.