Can Zimbra use sendmail rather than postfix

[jjrowan]

I've never used postfix. I installed Zimbra 5.0.18 on a CentOS 5 server that did not have postfix on it, I was using sendmail. When I looked at the /var/log/zimbra.log after trying to send calendar share e-mails I saw errors that the MTA was down. I installed postfix and enabled it in /etc/rc.d/rc5.d, disabling sendmail. When I run ps -ef |grep postfix it says it's running yet. If I telnet localhost 25 I am greeted with
220 jupiter ESMTP Postfix
I can interactively send mail from there and I can send from Zimbra but replying to e-mails or sending mail from a telnet session Zimbra's inboxes never receive mail. If I run zmcontrol status it says
mta stopped
postfix is not running

Is there a way to configure Zimbra to use sendmail rather than postfix. I'd rather not have to go through a learning curve trying to configure postfix if I don't have to.

On a postfix note, I can connect from the CentOS machine (localhost) but not from workstations on the LAN or the outside world. Port 25 is open in iptables. How do I configure postfix to allow inbound mail.

[phoenix]

Originally Posted by jjrowan

Is there a way to configure Zimbra to use sendmail rather than postfix. I'd rather not have to go through a learning curve trying to configure postfix if I don't have to.

No, you have to use the supplied packages. Zimbra is installed as a complete package not individual components.

Originally Posted by jjrowan

On a postfix note, I can connect from the CentOS machine (localhost) but not from workstations on the LAN or the outside world. Port 25 is open in iptables. How do I configure postfix to allow inbound mail.

You've possible got a DNS problem for your external records. You chould also check if all of the services are running:

su - zimbra 
zmcontrol status

and also check the log files for errors. There are also many threads in these forums that cover this type of problem/question if you'd care to do some research.

[jjrowan]

Here's results from zmcontrol and ps -ef

[zimbra@jupiter root]$ zmcontrol status
Host jupiter
antispam Stopped
zmamavisdctl is not running
antivirus Stopped
zmamavisdctl is not running
imapproxy Running
ldap Running
logger Running
mailbox Running
mta Stopped
postfix is not running
snmp Running
spell Running
stats Running
[zimbra@jupiter root]$ ps -ef|grep postfix
root 2580 1 0 09:44 ? 00:00:00 /usr/libexec/postfix/master
postfix 2595 2580 0 09:44 ? 00:00:00 qmgr -l -t fifo -u
zimbra 12523 11696 0 11:54 pts/2 00:00:00 grep postfix
postfix 28735 2580 0 11:24 ? 00:00:00 pickup -l -t fifo -u

[brian]

That would indicate the system version of postfix is running instead of the zimbra version. You need to disable sendmail/postfix/qmail or any other MTA provided by the OS before installing Zimbra.

[phoenix]

You'll need to check the log files (as I mentioned earlier) or search the forums for some further info on this problem.