Update Preferences.md

update page content for smtp configuration in preferences page

Author: pravinOpenSign

docs/docs/help/Settings/Preferences.md

@@ -115,9 +115,13 @@ The tour feature provides guidance for first-time users. You can turn this off f
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 ### 📧 Custom SMTP Configuration in OpenSign
 
-OpenSign allows users to **send emails using their own SMTP settings**, including Gmail integration or third-party SMTP providers.  
+OpenSign allows users to **send emails using their own SMTP settings**, including Gmail integration and third-party SMTP providers.
+
 OpenSign now supports SMTP configuration at both the **organization level** and the **individual user level**.
 
+To set up SMTP at the organization level, refer to the guide here:  
+https://docs.opensignlabs.com/docs/help/User%20Menu/Console/globalSMTP
+
 ## 👤 SMTP at the User Level
 
 Users can configure their own SMTP settings to send request-signature and completion emails using their personal mailbox.