Hello There,
I’m going to proceed with migration form exchange 2007 to 2013 but just encounter problem.
I can telnet port 25 form new Exchange 2013 server but cannot telnet it form any other computer within LAN.
We have notice it when I was changing SMTP banner to match RevDNS. If I change Receive Connector to role Hub Transport it is responding on telnet 25 from other servers. But correct is to set it up as Frontend Transport.
There is no AV and Friewall is disable. I can telnet prots form hubtransport role receive connectors.
Fresh installation and server is fully updated. Please help.
Maciej