Postfix DNS

Hello all. I tried install a e-mail server on my CentOs using the Postfix. I followed the tutorial and I got the control panel, e-mail creation and even send messages using the Postfix Admin panel as well but the POP3 and SMTP can't work with me.

I have a question if is necessary a new DNS entry in the server. The necessary ports link 25 and 110 is opened.

Thanks!

 

Which tutorial (URL) did you use? Any errors in your mail log?

 

Hello falko. No, my mail log looks good. I got this error when I tried open the Squirrel Mail. Do you know how can I solve? I found a lot of people with this problem, but I can't found a solution.

Code:

Error connecting to IMAP server: localhost.
111 : Connection refused

I used this tutorial: http://www.campworld.net/thewiki/pmwiki.php/LinuxServersCentOS/Cent5VirtMailServer

 

Is SELinux disabled? What's the output of

Code:

netstat -tap

?

 

Hello falko, this is the output of netstat -tap

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:mysql *:* LISTEN 988/mysqld
tcp 0 0 *:http *:* LISTEN 2725/httpd
tcp 0 0 *:telnet *:* LISTEN 2714/xinetd
tcp 0 0 *:smtp *:* LISTEN 2789/master
tcp 0 0 *:imap *:* LISTEN 2697/dovecot
tcp 0 0 *:ssh *:* LISTEN 906/sshd
tcp 0 0 *:https *:* LISTEN 2725/httpd
tcp 0 0 Geral:ssh 94-76-204-199.static.:42239 ESTABLISHED 7424/sshd: root [pr
tcp 0 256 Geral:ssh bd64eb51.virtua.com.b:62887 ESTABLISHED 7392/0

 

What about SELinux? What's the output of

Code:

getenforce

?

 

Said that is disabled.

 

Do you use a firewall? What's the output of

Code:

iptables -L

?

 

Falko, this is the output. I think that is enabled, but I add the ports used by e-mail like 25, 110, etc.

Code:

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

Chain RH-Firewall-1-INPUT (0 references)
target     prot opt source               destination     

 

Looks ok so you should be able to connect to IMAP. Did you send an email to the mail account before you tried to connect to the mailbox with SquirrelMail?

 

Hello. I triet but I can't receive that message either because the POP3 and SMTP configuration doesn't work in my Outlook. This is my other problem.

 

Any errors in your mail log?