What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Thank you for posting your concern, paulichenko, and we apologize for this inconvenience.
I have checked your email addresses and found these to be in our bounce list, together with their errors:
firstname.lastname@example.org - Reason(s) : smtp;554 delivery error: dd Requested mail action aborted, internal server error (456.11) - mta1110.mail.gq1.yahoo.com
email@example.com - Reason(s) : Mail SenderError: Mail from command failed - 550 SC-001 (BAY004-MC3F14) Unfortunately, messages from 18.104.22.168 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
I have now removed them from the said bounce list. But in order to resolve this issue, please change your email sender to firstname.lastname@example.org so we can try and see if this fixes the delivery issue.
Please let us know once the changes we're made.