To verify a user

Dear jotform, i was wondering if there was some plugin which can help me verify my form filler that whether he/she has filled any of my forms before. something like email verification or mobile verification. I hope you will come up with a positive response soon ,

Thanking you

Samarth Agrawal

Hi Samarth, thank you for reaching us.

As far as I know, there are no options to check whether a user has filled any of your forms before. It is possible to check whether the same user is submitting twice by enabling Unique Submission. You can read further regarding this on the following guide: How to Set Unique Submissions on a Form