Check your Service State
So you can not connect and the server refuses “external” connections.
To fix this:
Open an ExchangeShell as Administrator
[PS] C:\Windows\system32>Set-ServerComponentState -Identity MAIL02 -Component PopProxy -Requester HealthAPI -State Active
[PS] C:\Windows\system32>Get-ServerComponentState -Identity YourMailServer
Server Component State ------ --------- ----- [...] YourMailServer ImapProxy InactiveYourMailServer OabProxy ActiveYourMailServer OwaProxy ActiveYourMailServer PopProxy Inactive[...]
The Proxy-Componentx are disabled.
So you can not connect and the server refuses “external” connections.
To fix this:
Open an ExchangeShell as Administrator
[PS] C:\Windows\system32>Set-ServerComponentState -Identity MAIL02 -Component PopProxy -Requester HealthAPI -State Active
