Support » Plugin: WP Mail SMTP by WPForms » Token has been expired or revoked

  • Resolved christopherdisch


    I am experiencing the following error about once a week on my client’s site. I set everything up as directed, but this continues to happen to cause form failures. I use Elementor Forms on the site and use WP Mail SMTP. I follow the instructions to re-connect, and everything works ok for another week, and then I receive this message again. Here are some details. The client does not use Google Workspace for their email, just a personal Gmail. I set up the API using their email account. I am hoping there is a simple solution to this issue.

    Mailer: Gmail
    "error": "invalid_grant",
    "error_description": "Token has been expired or revoked."
    Please re-grant Google app permissions!
    Go to WP Mail SMTP plugin settings page. Click the “Remove Connection” button.
    Then click the “Allow plugin to send emails using your Google account” button and re-enable access.


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