Microsoft 365 Oauth2 integratino doesn’t work

  • srdjancolakovic

    (@srdjancolakovic)


    2 weeks, 5 days ago

    Hi, we are trying to set up the SMTP mailer on our website, and we have it configured entirely as in the guide – even created a dedicated account (no-reply@…) and successfully authenticated, added all the Graph permissions. It still does not work, in the plugin configuration page, the test log only says 

    OOOPS something went wrong!

    With no actual error code. Is there any hope?

Viewing 1 replies (of 1 total)
  • Plugin Author Erik

    (@codekraft)

    1 week ago

    Hi, and sorry for the very late reply. I was on vacation and I did not have access to a Microsoft 365 account to properly test the issue.

    I have now investigated the Office 365 configuration and found that the plugin documentation may be misleading: the required delegated permission is SMTP.Send under Office 365 Exchange Online, not a Microsoft Graph mail permission such as Mail.Send.

    Please also check that:

    • Authenticated SMTP is enabled for the mailbox in the Microsoft 365 Admin Center.
    • The account is a real, licensed Exchange Online mailbox and not only an alias.
    • The “From” address is the same mailbox used during the OAuth authentication.
    • You disconnect and reconnect the Microsoft account after changing the permissions.

    I also found that the plugin currently hides the actual SMTP error and only displays “OOOPS something went wrong!”. I am working on improving the error reporting so that configuration problems are easier to identify.

    Thank you for reporting this, and sorry again for the delay.

Viewing 1 replies (of 1 total)

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  • 1 reply
  • 2 participants
  • Last reply from: Erik
  • Last activity: 1 week ago
  • Status: not resolved