SMTP Not Working Properly On IIS
I set up my own SMTP server on IIS.
Most of the time it sends and recieves the email OK.
From time to time, the mails bounce. For example if I send to someone at Hanmail (major korean provider) then it always bounces. Similarly, sometimes people say they sent an email to the server and it bounced back to them.
I guess something is not set up right, maybe MX record or some other mysterious thing. How can I troubleshoot/solve this?
I MUST fix this so I will be back to check on this thread often,
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