I am trying to setup James mail server on a linux machine. The linux machine has public static ip address assigned.
I installed James and added in the config.xml added the servername as mydomain.com.
In the DNS for mydomain.com, I have created a A-record, say mx.mydomain.com, which corresponds to the ipaddress of the above mail server machine. Then added mx.mydomain.com as MX record for mydomain.com.
In James, I have created a new user test. Then from gmail, I sent a mail to firstname.lastname@example.org. The mail is not received back and it didn't even bounce back.
The linux machine is behind a firewall with only 22, 80, 8080 ports open for external network.
My question here is, Do I require do open any other ports on the firewall so that the mail I send from gmail arrives to James? If it's not the port problem, any views on solving this issue?
I don't want to send mails from this server. It's only for receiving the mails.