Delivery has failed to these recipients or groups:
support@[company].zohodesk.eu (support@[company].zohodesk.eu)
Your message wasn't delivered because the recipient's email provider rejected it.
Diagnostic information for administrators:
Generating server: DB9PR08MB6537.eurprd08.prod.outlook.com
support@[company].zohodesk.eu
Remote
Server returned '550 5.7.520 Access denied, Your organization does not
allow external forwarding. Please contact your administrator for further
assistance. AS(7555)'