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JotForm Support Manager
This is because Comcast is rejecting emails coming from our servers. Therefore the messages are bounced back and that is how your email address ends up in our bounce firstname.lastname@example.org is IN the bounce list
Reason(s) : smtp; 554 resimta-po-08v.sys.comcast.net
I would suggest you to disable the spam filter of your comcast email account and see if that resolves this issue. The following guide should help you on how to disable the spam filter: https://studiohelper.uservoice.com/knowledgebase/articles/390804-clients-reporting-not-getting-their-emails-comcas
If the issue persists, I would recommend you to use some other email address in the "Recipient Email" address of your form's notification email alert.