- JotForm SupportWelvinAnswered on February 17, 2016 at 07:20 AM
That is because your email address has been added to our bounce list:
email@example.com is IN Remove the bounce list
Reason(s) : smtp; 554 4.4.7 Message expired: unable to deliver in 840 minutes.<452 Domain size limit exceeded>
I've fixed this for you, but we recommend checking this guide to prevent the issue from happening again:
The whitelisting part is important.