Steps to Uninstall Zimbra in Linux

uninstall

[root@test zcs-7.2.3_GA_2872.RHEL5.20130304144834]# su - zimbra
[zimbra@test ~]$ zmcontrol stop
Host localhost
        Stopping zmconfigd...Done.
        Stopping stats...Done.
        Stopping spell...Done.
        Stopping snmp...Done.
        Stopping cbpolicyd...Done.
        Stopping archiving...Done.
        Stopping antivirus...Done.
        Stopping antispam...Done.
        Stopping imapproxy...Done.
        Stopping memcached...Done.
        Stopping mailbox...Done.
        Stopping logger...Done.
[zimbra@test ~]
[zimbra@test ~]$ exit
logout

[root@test zcs-7.2.3_GA_2872.RHEL5.20130304144834]# ./install.sh -u

Operations logged to /tmp/install.log.12665
Checking for existing installation...      
    zimbra-ldap...NOT FOUND                
    zimbra-logger...NOT FOUND              
    zimbra-mta...NOT FOUND                 
    zimbra-snmp...NOT FOUND                
    zimbra-store...NOT FOUND               
    zimbra-apache...NOT FOUND              
    zimbra-spell...NOT FOUND               
    zimbra-convertd...NOT FOUND            
    zimbra-memcached...NOT FOUND           
    zimbra-proxy...NOT FOUND               
    zimbra-archiving...NOT FOUND           
    zimbra-cluster...NOT FOUND             
    zimbra-core...FOUND zimbra-core-7.2.3_GA_2872

Saving existing configuration file to /opt/zimbra/.saveconfig

Completely remove existing installation? [N] yes

Shutting down zimbra mail

Removing existing packages

   zimbra-core...done

Removing deployed webapp directories

Removing /opt/zimbra
Removing zimbra crontab entry...done.
done.
Cleaning up zimbra init scripts...done.
Cleaning up /etc/ld.so.conf...done.
Cleaning up /etc/prelink.conf...done.
Cleaning up /etc/logrotate.d/zimbra...done.
Cleaning up /etc/security/limits.conf...done.

Finished removing Zimbra Collaboration Suite.