Currently my mail server sitting on top of Redhat 9.0, sending email out is just fine, but
I could not receive any email from outside, one gentleman points me on how to fix
the problem, but did not let me know the detailed procedure?
So how to open my SMTP port (25)?
and how to make my server be in my DNS as an MX record? Right now my
ISP already bind my real IP addr with my domain name
Also do I need to add mail.my_domain.com to /etc/hosts file that already includes
Thx a ton,
>If you cannot receive mail to your colocated server, there are two potential problems
>1.) You need port 25/TCP open to allow incoming connections that deliver mail
>2.) Your server needs to be in your DNS as an MX record. That is how you tell other domains where to deliver mail to you. If you post the actual name of your domain, and the DNS name or IP of your colocated server, it will be much easier to tell you how to fix it.