Jonas Aeschlimann

and as a workaround:

do you think this would work? i did not try…
/* FluentSMTP Callback immer auf sprachneutrale REST URL umleiten */
add_action(‘init’, function() {
$uri = $_SERVER[‘REQUEST_URI’] ?? ”;

if (
    strpos($uri, '/fr/wp-json/fluent-smtp/outlook_callback') !== false ||
    strpos($uri, '/de/wp-json/fluent-smtp/outlook_callback') !== false ||
    strpos($uri, '/it/wp-json/fluent-smtp/outlook_callback') !== false
) {
    wp_safe_redirect(home_url('/wp-json/fluent-smtp/outlook_callback'), 302);
    exit;
}

}, 1);

<span style=”font-size: inherit;”>We were able to identify the exact cause of the problem.</span>

The issue is related to WPML and how FluentSMTP generates the Outlook OAuth callback URL.

On multilingual sites using WPML, FluentSMTP generates the callback URL using the currently active language. This means the REST endpoint is translated and includes the language prefix.

Instead of always using the correct callback URL

https://sbpv.ch/wp-json/fluent-smtp/outlook_callback

FluentSMTP generates language specific versions such as:

https://sbpv.ch/fr/wp-json/fluent-smtp/outlook_callbackhttps://sbpv.ch/it/wp-json/fluent-smtp/outlook_callbackhttps://sbpv.ch/en/wp-json/fluent-smtp/outlook_callback

However, Microsoft Azure only allows the exact redirect URL that is registered in the application. Since only the non translated version was registered, Microsoft rejected the request with an “Unauthorized” error.

only this

Hey Patrick @paddyam

Sorry for the late reply. In my case, the customer did have Office365. I was 100% sure that was not the case. So sorry for my wrong post.

Many thanks

Jonas

• This reply was modified 1 year ago by Jonas Aeschlimann.

Can you please provide me with the code for functions.php so that it is completely disabled?

many thanks

Jonas

Lieber Henning

Vielen Dank für deine Nachricht. Bei mir rotiert es nun auch einwandfrei. Irgendwie brauchte die Gruppe ein paar Minuten bis es aktiv war. Komisch aber jetzt geht es.

Für weitere Fragen würde ich dann den PRO Support nutzen Danke. 😉

Viele Grüsse

Jonas