Jackson Miller

Zimbra kicks ass (in case you didn’t know). It is a single install that sets up SMTP, IMAP, POP3, webmail (and a killer one at that), LDAP, calendaring, contacts, etc on a server. There are several compelling options, but since I am cheap right now, I am going with the free community edition. Unfortunately I was not able to find any straight forward instructions for setting up Zimbra on a CentOS5 server. Here is what I had to do:

1. Download Zimbra and extract the archive (CentOS5 uses the Red Hat Enterprise Linux 5 binary)
2. install fetchmail (yum install fetchmail)
3. Allow sudo without tty (use visodo and comment out “Defaults requiretty”)
4. Set SELinux to permissive (edit /etc/selinux/config and set “SELINUX=permissive”)
5. restart server to ensure SELinux change took effect
6. run install.sh in the zcs folder that was created from the Zimbra archive
7. During the install you will likely need to change the ports for http and https (I chose 8080 and 8443)

Piece of cake.