Gmail SMTP reverting to JotForm default sender email address

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    Asked on February 21, 2017 at 05:37 PM

    I tried setting up SMTP with my gmail account using port 587 and TLS, and then port 465 and SSL. Neither one worked. I keep getting the error:

    There was an error on your SMTP configuration. Due to that error, our system
    automatically changed your email sender's address for your form ID
    51218475473155 to to prevent issues arising from your

    Please log in to your JotForm account ( to correct your
    SMTP configuration.

    The reason I tried SMTP was that an important email recipient (my office manager) keeps getting put on the bounce list. I remove it and pretty soon it's back on the bounce list.




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    Answered on February 21, 2017 at 10:36 PM

    The SMTP settings of the Gmail account are account as per this article. This may be happening due to the updated security features of Gmail. You may consider turning on the option "Access for less secure apps," in Gmail account settings. Please see the following article from Google that helps in you enabling this option.

    Generally, the email addresses are added to our bounce list when the emails sent are not delivered repeatedly due to any reason. If the email address is still in our bounce list, please provide us with the email address without removing it from the bounce list so that we can check the reason. Also, please check the following guide that can help you with troubleshooting email delivery issues. 

    Hope this information helps! 

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    Answered on February 22, 2017 at 09:09 AM

    I suspect it's because my office manager is using Thunderbird, one of those clients mentioned as being less secure. That address ( is currently in my bounce list. Please advise.

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    Answered on February 22, 2017 at 11:18 AM

    I see the email address is in the bounce list with the following reason.

    smtp; 554

    It seems that Comcast has blocked the JotForm sender email address. You may try adding the whitelisting the JotForm domains in the email account. Also, please try the steps provided in the guide mentioned in my earlier post to troubleshoot the email delivery issues.

    Otherwise, you may turn on the option "Access for less secure apps," in Gmail account settings and then set up SMTP in JotForm account.

    Please get back to us if the issue still persists. We will be happy to help. 

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    Answered on February 23, 2017 at 09:44 AM

    Thanks, I may have fixed the problem thanks to your advice.

    In the meantime,

    I've created a new minor one. This line now shows up at the top of my emails:

    <td id="value_420" class="valueColumn" style="padding: 5px !important;

    I can't see where it came from in my form.

    Thanks in advance!

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    Answered on February 23, 2017 at 11:21 AM

    Great! Glad to see that the issue is now resolved. The other issue is moved to a separate thread and shall be addressed there shortly. Please follow the link below:

    Thank you!