Form

I have a survey form with first name, last name, email address, phone number, then some free-form text (question).  They're designated as 'paragraph text' or 'single line text' with 'Must not contain URL's' checked.  One of the questions is 'Best Way to Contact You' so that field does not have the 'Must not contain URL's' checked so they can enter their email address.  Many people have submitted this form successfully, however several people have reported getting a message a URL isn't allowed in the field when they say they haven't typed a URL.  In testing I've found that even if