Why did notification emails suddenly quit?

https://www.jotform.com//?formID=62144825363152

I even tried to add new emails to test, the form says it is sending the tests to an email different than that I've entered (but still an active email)

This is happening to six other forms that were cloned. They worked just fine until a few days ago.

I have checked the form you have shared and I can see you have two email recipient addresses, one of them is in our bounce list, here is the email as well as the reason: 

Result: j***e.dahl@b**u.edu is IN the bounce list

Reason(s) : smtp; 550 permanent failure for one or more recipients

I have removed it and you should receive emails on that address now, I would suggest you to check this guide in order to properly set up your email notifications to avoid bouncing: How-to-Prevent-Email-Bouncing-Related-Issues

Here is also a guide that will help you to check and remove an email address from our bounce list: How-to-Remove-Your-Email-Address-from-Bounce-List

Also, do note that using the Test Email button in the email wizard will send the email to the email address set up in your account, this is why if you're using this button you will see it says the test email was sent to another email address that is not listed as recipient. If you want to test your email notifications you will need to send a real submission.

If the issue still persists on your end, please contact your email provider to white-list our IP addresses, you will find this info no the next link: https://www.jotform.com/help/364-Why-I-am-not-Receiving-Email-Notifications

Hope this helps.