Half of transactional emails sent has Incorrect Authentication Data error

  • Resolved hookclothing

    (@hookclothing)


    4 months ago

    I have been using PostSMTP with Brevo since 2021. It has been working perfectly without any issues, until recently my host migrated our VPS to a newer one. Our host says the only thing that has changed is our IP address. I had linked PostSMTP manually via SMTP before this and it was working, but after migration, every email sent had an “Incorrect Authentication Data” error.

    I then used the smart wizard to link my Brevo account via API, and now 50% of our emails are sent successfully. The other 50% failed emails have now both the “Code: , Message: , Body:” error and the “Incorrect Authentication Data” error. We only send woocommerce transactional emails.

    Kindly assist, I can’t troubleshoot the issue since half of the emails manage to send successfully. Thank you!

    The page I need help with: [log in to see the link]

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Support M Aqib Khan

    (@aqibkhan9)

    Hello @hookclothing

    Hope you are doing well.

    Thank you so much for connecting with us and sharing your concern in detail. We are glad that you are using it for a long time, we acknowledge your concern. We would suggest you to check WooCommerce email setting if you have successfully configured and able to sent test mail. However, if you are still facing the issue we would suggest you to open support ticket with us and we can dive deep into the issue.

    We are determined to assist you and get your issue resolved.

    Thanks and regards,
    Support Team – WP Experts

    Plugin Support M Aqib Khan

    (@aqibkhan9)

    Hello @hookclothing

    Hope this finds you well.

    We are reaching out to follow up on our previous communication, as we haven’t received a response from you. We hope everything is going smoothly on your end.

    Please do not hesitate to contact us if you have any questions or concerns. We are here to assist you.

    Thank you and best regards,

    Support Team
    WP Experts

    Plugin Support M Aqib Khan

    (@aqibkhan9)

    Hello @hookclothing ,

    We are marking this thread as resolved due to inactivity. If you encounter any further issues, please feel free to open a new thread.

    Have a great day!

    Thanks and regards,
    Support Team – WP Experts

Viewing 3 replies - 1 through 3 (of 3 total)
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