I am trying to install the Zimbra Network Edition 7.1.x on an Ubuntu 10.04 Linux box and I am experiencing the following error when trying to run the install:

ERROR: Installation can not proceeed. Please fix your /etc/hosts file
to contain:

Where is the ip address of the host,
is the FULLY QUALIFIED host name, and
is the (optional) hostname-only portion

Here is what my /etc/hosts file looks like: localhost.localdomain localhost mail.titanpro.us mail

# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

As far as I am concerned everything looks correct in this file... if you have any suggestions or advice on how to approach this error please let me know. I left a voicemail with my designated Zimbra Rep this morning to get access to Technical Support and I am patiently awaiting his phone call. In the meantime I figured I would use the forums to see if I could get the issue resolved.

I appreciate your help and assistance in this matter.