Welcome to the forums,
It grabbed the servername as part of the domain from the box.
As you can see you can try just sbstests.com or continue on and make a sbstest.com domain later after the setup finishes.
From the server post the output of:
Code:
dig any sbstest.com
http://ip:7780 is a little wrong for the admin console...or did you change the web port from 80 > 7780?
Admin console gui is at: http
s://ip:7071
Make sure you have no firewall or these ports open
Ports - Zimbra :: Wiki &
Firewall Configuration - Zimbra :: Wiki
This FOSS or NE/
NE trial?
You might want to use a different operating system platform though...no sense installing 4.5.x when you can do 5.0.1
List of supported platforms for 5.0.x is here:
Zimbra Product Portal -Release 5.0
NE downloads:
/products/downloads.html
FOSS downloads:
/community/downloads.html
NE Docs:
/products/documentation.html
FOSS Docs:
/community/documentation.html