Centos – Sendmail is not listening to any port

centoscentos6email-serverportsendmail

I am using VPS hosting with CentOS 6.

I've installed Sendmail, but it's not listening to any port. I've checked, IPTables is disabled (or stopped I guess; service iptables status command returns iptables: Firewall is not running.

Here is netstat -plnt output

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address      Foreign Address    State       PID/Program name
tcp        0      0 0.0.0.0:22         0.0.0.0:*          LISTEN      1538/sshd
tcp        0      0 127.0.0.1:25       0.0.0.0:*          LISTEN      1186/master
tcp        0      0 0.0.0.0:3306       0.0.0.0:*          LISTEN      11274/mysqld
tcp        0      0 :::22              :::*               LISTEN      1538/sshd
tcp        0      0 ::1:25             :::*               LISTEN      1186/master
tcp        0      0 :::80              :::*               LISTEN      14173/httpd

In sendmail.mc, I've edited DAEMON_OPTIONS('Port=smtp,Addr=127.0.0.1, Name=MTA')dnl Addr to 0.0.0.0 , and recreated the .cf file using m4,but that doesn't seem to solve the issue.

What should I do?

Best Answer

CentOS 6 comes with Postfix as default mail server and you can see it running (tcp :25 1186/master). Try to stop Postfix (service postfix stop) and then start sendmail (service sendmail start).

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