There are problems with sending mail to external mail from my domain.
The Outlook message states:
Error: 550 5.7.1 Command rejected
Message rejected by: relay-us-east-2.prod.hydra.sophos.com
Only that user has the problem, the other users are working no
[edited by: Raphael Alganes at 1:24 AM (GMT -7) on 7 Sep 2023]