How to open port 25 on the server

Posted by liuxingruo on Server Fault See other posts from Server Fault or by liuxingruo
Published on 2010-05-10T12:47:49Z Indexed on 2010/05/10 12:55 UTC
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linux

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mail

I'm using centOS.

I want to implement a smtp mail server, and I have installed postfix and dovecot(both have been set correctly).

I tried to telnet the 25 port, but it returns Unable to connect to remote host: Connection refused

So, How can I open the 25 port? Thanks!

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