Updated FAQ

FAQ.md

@@ -4636,6 +4636,13 @@ Note that FairEmail does support replying to calendar invites (a pro feature) an
 
 🌎 [Google Translate](https://translate.google.com/translate?sl=en&u=https%3A%2F%2Fm66b.github.io%2FFairEmail%2F%23faq139)
 
+<br>
+
+Firstly, please check if the *Tenant ID* field below the email address field is empty,
+and when you need to use it, please ensure the correct Tennant ID is entered.
+
+<br>
+
 The confusing Microsoft specific server error *User is authenticated but not connected* might occur if:
 
 **Consumer Outlook/Hotmail/Live account**

index.html

@@ -2385,6 +2385,9 @@ $NotDisplayed</code></pre>
 <p><br /></p>
 <p><a name="faq83"></a> <a name="faq139"></a> <strong>(139) How do I fix ‘User is authenticated but not connected’?</strong></p>
 <p>🌎 <a href="https://translate.google.com/translate?sl=en&amp;u=https%3A%2F%2Fm66b.github.io%2FFairEmail%2F%23faq139">Google Translate</a></p>
+<p><br></p>
+<p>Firstly, please check if the <em>Tenant ID</em> field below the email address field is empty, and when you need to use it, please ensure the correct Tennant ID is entered.</p>
+<p><br></p>
 <p>The confusing Microsoft specific server error <em>User is authenticated but not connected</em> might occur if:</p>
 <p><strong>Consumer Outlook/Hotmail/Live account</strong></p>
 <ul>