Opening port Issue when configure postfix

Posted December 22, 2014 1.6k views


I installed postfix and configured it for my droplet. But pop3 & Imap ports still close.So that i cant configure it with email client. How can i open these ports?

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Is postfix listening on the public interface? What’s the output of:

sudo netstat -plutn | grep postfix

Do you have a firewall installed on your droplet? If not, or if you don’t know, please post the output of the following command:

sudo iptables-save