Stop Spammers from putting comment in Newsletter field

Topics: Business Logic Layer
Dec 27, 2010 at 2:20 PM

My bloggers have been complaining of an error on blog publish and when I took a look at the error the message read:

Message : The specified string is not in the form required for an e-mail address.

I took a look at the newsletter.xml file and found several hundred lines like this:

<email>payday loan blog-||-|-gt-|-ery nice article!-|-false-|-false-|-9b26a48c-0027-4a35-a8c2-b0a43fa85db1-|--|-</email>

I deleted the bad records then tested it and it worked.

Is there anyway to keep spammers from submitting comments in this Newsletter signup field?