Can you block submissions from a specific email?

we are getting a spammer, is there a way to block his email?

We cannot restrict access based on the email address.

I have checked your data and it appears that spam is coming from Pakistanian IPs. If your form is embedded on the website and spam is becoming a real issue, you might consider asking your web administrator/host to limit the access from Pakistanian IPs to your website.

If you need any further assistance, please let us know.