Blocking emails

Not being able to block emails is a poor design flaw, in my humble opinion. Many other products like Jotform have this ability. I suggest to be competitive that you offer this simple solution. 

We appreciate your feedback and it we will surely take note of it.

There are ways within our forms to avoid spammers from abusing your forms. Aside from adding Captcha (How-to-Add-a-Captcha-Field), you can also set form limits based on a unique question (How-to-set-Form-Limits-Based-on-a-Unique-Question) or set unique submissions in a form (How-to-Set-Unique-Submissions-on-a-Form).

Thank you.