We followed the below procedure and we even did a telnet in cmd outlook.office365.com is accessible but doing a test email from AR it is not sending. What seems to be the problem?
did you check the email engine logs? You will get more information about the error.
Viewing the Email Error Logs for Email Engine.
we've tried using the emaildebug.bat that we've found here in the community and here's the result
AREmail folder should have read/write/execute permissions.
Remedy - Email Engine - ARS 9.x Email Engine's service does not start in a server group
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