Changes in mail delivery on, or around the second of January

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    Asked on January 13, 2017 at 05:31 AM

    I have several forms running through JotForm for several websites belonging to the city of Reykjavik pre- and grammar schools.

    Since the second of January 2017, we have received none of the information sent through those forms and a trace of our mailing systems shows no attempts of mail delivery from

    We have been migrating our institutions from outlook based systems to Office 365, however that migration has been going on since last summer so I have a hard time seeing the connection there.

    Has anything changed on Jotforms end that could cause this?


    Best regards

    Jonas Steinsson

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    Answered on January 13, 2017 at 07:09 AM

    Hello Jonas,

    Your mail hosting provider started blocking mails coming from JotForm. As a result, your email addresses started landing to our bounce list.

    Here are the email addresses: 

    These emails gave the same reason:

    Reason(s) : smtp; 550 5.7.606 Access denied, banned sending IP

    For now, I have removed the said email address from the bounce list so please observe if you are still not receiving emails. You may also check your email delivery history to see the status of each email delivery. Please check this guide to learn how to access your email history: 

    If the problem persists and the emails keep on getting blocked by your mail server, you might want to contact your email host service provider and ask from them if emails from JotForm can be whitelisted. 

    You can try also to change your sender email address if changing it to would fix the problem.

    If you have questions, please let us know.