I can not start zimbra service

[somechaoyun]

Hi,everybody.I've installed zimbra open source for redhat AS 4 edition.But so badly,when I run /opt/zimbra/bin/zimbra start,it prompt "zimbra failed.The error was:Host zimbralinux.The zimbralinux is my linux server name.And also,I've run programe /opt/zimbra/libexec/zmsetup.pl,there are"Operations logged to /tmp/zmsetup.log.3260
Setting defaults...Setting defaults from existing config...Done
Checking for port conflicts
Port conflict detected: 389 (zimbra-ldap)
Port conflict detected: 25 (zimbra-mta)
Port conflict detected: 636 (zimbra-ldap)
Port conflicts detected! - Any key to continue"
when apply it,it says:"Adding zimbra to zimbraMailHostPool in default COS...ERROR: service.FAILURE (system failure: getDirectContext) (cause: javax.naming.CommunicationException zimbralinux:389)
ERROR: service.FAILURE (system failure: getDirectContext) (cause: javax.naming.CommunicationException zimbralinux:389)
Done
Setting up zimbra crontab...Done
Starting servers...Done."
thanks for help me!

[phoenix]

Well, first of all these problems have been covered in the forums already - did you do a search?

The port conflicts indicate to me that you have another mail server running. Things to check: SElinux and your firewall are disabled? Postfix isn't installed or started? You need to 'su zimbra' then run 'zmcontrol start' to start Zimbra - that's covered in the documentation. Is your /etc/host file set correctly? Zimbra also starts automatically (if you've answered 'yes') after the install and will start automatically at boot time.