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Issue configuring oAuth for SMTP Authentication

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Timo Breumelhof (40F)
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Posts: 1143
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9/4/2024 6:38 AM

    I'm trying to configure oAuth for Email using the Exchange option.
    After a few config hickups we ended with the problem that apparently DNN send a non https return addres to office 365.
    We do have https redirect in place but ion the end this is the error we get:

    AADSTS50011: The redirect URI 'http://www.website.com/Providers/SmtpOAuthProviders/ExchangeOnline/Authorize.aspx' specified in the request does not match the redirect URIs configured for the application '******************************'. Make sure the redirect URI sent in the request matches one added to your application in the Azure portal. Navigate to https://aka.ms/redirectUriMismatchError to learn more about how to fix this.
     
    Did anybody have the same issue?
    I tried both the "MailKitMailProvider" and "CoreMailProvider" but the issue remained the same.
     
    johnhenley
    Growing Member
    Posts: 87
    Growing Member
    9/4/2024 7:40 AM
      Hi Timo!
      Are you testing this from host or a specific portal ?
      1
      Timo Breumelhof (40F)
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      Posts: 1143
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      9/4/2024 9:48 AM

        Host

        johnhenley
        Growing Member
        Posts: 87
        Growing Member
        9/4/2024 10:40 AM

          Since it's host, the logic for https vs http for the exchange provider's redirect URL depends on the SSL settings for the host's portal. Look in the 'HostSettings' table for SettingName 'HostPortalId' (I'm not sure how that gets set since "Host Settings" disappeared with the Persona Bar?). The use the HostPortalId to lookup in PortalSettings for PortalId = HostPortalId and SettingName = SSLSetup. Make sure setting value is "1" ("On").

          1
          Timo Breumelhof (40F)
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          Posts: 1143
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          9/5/2024 8:32 AM
            Posted By johnhenley on 9/4/2024 4:40 PM

            Since it's host, the logic for https vs http for the exchange provider's redirect URL depends on the SSL settings for the host's portal. Look in the 'HostSettings' table for SettingName 'HostPortalId' (I'm not sure how that gets set since "Host Settings" disappeared with the Persona Bar?). The use the HostPortalId to lookup in PortalSettings for PortalId = HostPortalId and SettingName = SSLSetup. Make sure setting value is "1" ("On").

            I did that but it crashed the "return page" :-(

             

             

            johnhenley
            Growing Member
            Posts: 87
            Growing Member
            9/5/2024 8:50 AM
              Aha, progress!
              1
              johnhenley
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              Posts: 87
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              9/5/2024 8:56 AM
                What do you mean by “crashed” the page?
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                Timo Breumelhof (40F)
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                Posts: 1143
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                9/5/2024 9:24 AM

                  Ok sorry. I already forced the main site to SSL before posting this, but that lead to a 503 error when trying to complete the process, not sure why..

                  Daniel Valadas
                  Advanced Member
                  Posts: 223
                  Advanced Member
                  9/5/2024 1:04 PM
                    If you figure out all the proper setup to make it work, we would greatly benefit from having that process documented :) I could never make it work with exchange.
                    1
                    johnhenley
                    Growing Member
                    Posts: 87
                    Growing Member
                    9/5/2024 1:34 PM

                      Posted By Timo Breumelhof (40F) on 9/5/2024 9:24 AM

                      Ok sorry. I already forced the main site to SSL before posting this, but that lead to a 503 error when trying to complete the process, not sure why..



                      Is the 503 error on DNN side? Or exchange?
                      What type of certificate are you using for DNN? And is the DNN endpoint accessible publicly?
                      1
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