Hi,
I have made an Exchange 2013 installation and although I can send emails to internal Exchange users, I cannot send or receive emails from external accounts (gmail, hotmail, etc).
The deployment consists of, one CAS server, one Mailbox server and an Edge server. The Edge server is located at the DMZ. I have exported the Edge subscription and installed it at the Mailbox role and the connectors have been created successfully but email traffic to the outside world cannot be send or received. The Edge server has one network card and is NATed to a public IP address. Also when i connect through telnet to the exchange server, I get an "220 **********" message instead of the mail server response name. I read somewhere that this is caused due to Cisco devices but I am not sure.
I have attached a pic that shows the EdgeSync - outbound send connectorAny ideas on why this does not work?I have opened the following ports to the firewall:
SMTP Port 25
EDGE Transport Serverß–>Intranet
SMTP Port 25 and 2525 – Mailflow
DNS TCP/UDP – 53 – DNS Resolution
RDP TCP 3389 – Remote Desktop
LDAP – 50389 –
locally to bind to the AD LDS instance – There is no need to open this port on perimeter firewall.
Secure LDAP – 50636 – Directory synchronization from Mailbox servers to AD LDS
Thanks in advance,
Argi