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I test the Email Validator widget on your jotform http://www.myjotform.com/form/51472610177553
but I could not reproduced the issue you reported.
Here is the screenshot of my test
are you not able to make the same work on your email?
Can you please try also using a different email address. Perhaps the issue is on the email account.
Let us know if issue persist.
New response received
Thank you. Am not sure why I had an issue. Ok I will try again.
Yes, kindly try it again. If you encounter any issues, please feel free to let us know. We will wait for your response. Thank you.