FluentSMTP with O365

  • Resolved shanekryme

    (@shanekryme)


    1 week, 2 days ago

    Seeing that the “Supported Account Type has changed in the Azure Portal, whats the best option should we choose from the new list of dropdowns?

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  • Plugin Support Ariful Islam

    (@arifulislam1)

    5 days, 3 hours ago

    Hi @shanekryme ,

    Apologies for the delay in replying. For FluentSMTP, you should not choose Single tenant for this setup.

    Instead, we recommend selecting Any Entra ID tenant + Personal Microsoft accounts. This is Microsoft’s current wording for what was previously called the Multitenant + Personal Microsoft accounts option.

    FluentSMTP’s Microsoft mailer currently uses Microsoft’s /common OAuth endpoints, so it is designed to work with a multitenant-style app registration rather than a tenant-specific (single-tenant) application.

    If you’re only using a Microsoft 365 work or school mailbox, Any Entra ID tenant may also work. However, Single tenant is not the recommended option for FluentSMTP’s default Outlook/Microsoft 365 connection flow.

    Also, please make sure the following settings are configured correctly:

    • Platform: Web
    • Redirect URI: https://yourdomain.com/wp-json/fluent-smtp/outlook_callback

    If authentication still fails after making these changes, please share the exact error message or a screenshot, and we’ll be happy to guide you further.

    Thank you.

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