2024-10-22 07:26:24 SMTP ERROR: Password command failed: 535 5.7.139 Authenticat

  • Resolved marketingcopenhagen

    (@marketingcopenhagen)


    1 month ago

    hi there,

    Suddenly we get this error in WP Mail SMTP about our contact form 7 from and our forms are not working anymore. The error is: Password command failed: 535 5.7.139 Authentication unsuccessful, basic authentication is disabled.?

    We double checked the email and password and everything is correct. What do we do? I hope you can help. Thanks.

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

Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Support Darshana

    (@darshanaw)

    Hi @marketingcopenhagen,

    Thanks for reaching out! It appears that you have authenticated the WP Mail SMTP plugin using your Microsoft 365 email account (or Hotmail, Live, or Outlook email account).

    Microsoft has recently updated their policies to remove Basic authentication, which affects users attempting to connect via their SMTP server using the “Other SMTP” mailer. Due to these changes, it is no longer possible to establish an SMTP connection with Microsoft servers using Basic authentication. This impacts SMTP plugins like ours as well as other software that relies on connecting to Microsoft services like Hotmail, Live, Outlook or Microsoft 365 over SMTP.

    For more detailed information, please refer to the official Microsoft documentation: Deprecation of Basic Authentication.

    We sincerely apologize for any inconvenience this may cause and recommend configuring an alternative email provider or switching to a different mailer. You can explore all available mailer options here.

    Thank you for your understanding!

    Thread Starter marketingcopenhagen

    (@marketingcopenhagen)

    Thank you so much for your answer and help.

Viewing 2 replies - 1 through 2 (of 2 total)
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