Problem using Postfix with Sendmail
I've sendmail installed using "apt-get install sendmail" and also postfix installed using Webmin. But Postfix cannot start, and when I checked the /var/log/mail.err
*Jul 11 14:09:03 victoria postfix/master[6588]: fatal: bind 0.0.0.0 port 25: Address already in use
Jul 11 14:09:10 victoria postfix/master[6821]: fatal: bind 0.0.0.0 port 25: Address already in use
Jul 11 14:09:11 victoria postfix/master[6820]: fatal: daemon initialization failure
Jul 11 14:09:12 victoria postfix/postfix-script[6822]: fatal: mail system startup failed*
and my "netstat -tap" show:
*root@victoria:/etc/init.d# netstat -tap
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 localhost:mysql *:* LISTEN 2365/mysqld
tcp 0 0 localhost:submission *:* LISTEN 5639/sendmail: MTA:
tcp 0 0 *:webmin *:* LISTEN 896/perl
tcp 0 0 *:ssh *:* LISTEN 554/sshd
tcp 0 0 localhost:smtp *:* LISTEN 5639/sendmail: MTA:
tcp 0 384 192.241.205.208:ssh 175.139.222.195:45062 ESTABLISHED 29460/1
tcp6 0 0 [::]:http [::]:* LISTEN 773/apache2
tcp6 0 0 [::]:ssh [::]:* LISTEN 554/sshd
getnameinfo failed
getnameinfo failed
tcp6 0 1 [UNKNOWN]:http [UNKNOWN]:60003 LAST_ACK -*
disable Sendmail can get the Postfix up and running. But I thought sendmail and postfix are suppose to work together? How to configure to have them both in a server?
Thanks.
Postfix is a drop-in sendmail replacement that includes its own sendmail binary (see the foot of this post). I'm honestly surprised apt let you do this, I thought they were package conflicted.
Anyway, to fix:
sudo apt-get purge sendmail
sudo apt-get install --reinstall postfix
sudo /etc/init.d/postfix restart
Proof that sendmail on my system is provided by postfix:
$ dpkg -S `which sendmail`
postfix: /usr/sbin/sendmail
If you're still having problems, here's how you can find out what program (and which package) is hogging port 25:
$ sudo netstat -pel | grep smtp
tcp 0 0 *:smtp *:* LISTEN root 8487 2212/master
$ # Then we use the 2212 from that in the following to get the package:
$ dpkg -S "$(sudo ps ux | grep 2212 | awk '{print $NF}')"
postfix: /usr/lib/postfix/master
In my case that's postfix. In your case I expect to see something else. Nuke it from orbit.
For me the solituion was a variant of Oli answer in an Ubuntu13:
Error: fatal: bind 0.0.0.0 port 25: Address already in use
Sendmail purge didn't work:
Package 'sendmail' is not installed, so not removed
So I tried:
service sendmail stop
sudo apt-get install --reinstall postfix
and worked!
This solved me on the same issue.
service sendmail stop
service postfix restart
service sendmail start
As seen at Postfix start error Port 25: Address already in use