stopping unwanted spam emails

How do I completely stop "filthy" unwanted spam emails, I tried creating filter "don't send to spam and apply...." , I am still getting emails

Thank you

Hello there,

Thanks for reaching out to us.

The account you're using on this thread is not associated with a Jotform account.

Could you kindly let us know what emails are you referring to?

Are you receiving spam submissions on your forms?

Thanks for your cooperation.

Regards