Why is my email address on your bounce list?

I received a message that says you can't contact me because my email is on your bounce list.  When I submitted a different email address it immediately came back and said it was on your bounce list too?

Both emails submitted are legitimate, working emails. 

Please help.

Hi, thank you for contacting us.

I have checked your email history and removed all the bouncing email addresses from the bounce list, so you should be receiving emails properly from now on.

For more information on how to remove an email from the bounce list, please see https://www.jotform.com/help/262-How-to-Remove-Your-Email-Address-from-Bounce-List

In the beginning of the guide above, we tried to explain some of the reasons that led to email bouncing. Quoting from the guide:

There are several reasons why your email address may have been added to the bounce list. It could be due to a non-existent/inactive email address, your mail server being unavailable, your email server has rejected the emails due to suspected spam, your mailbox is full or JotForm is on your blacklist. JotForm will stop sending emails when your email address is on the bounce list. Please note that high bounce rates will put our sending method at risk so we have to process the bounce messages without exceptions.

To prevent email bouncing related issues, please see https://www.jotform.com/help/208-How-to-Prevent-Email-Bouncing-Related-Issues

If you need further assistance please let us know. We will be happy to help. Thank you.