install on ubuntu10.04 failed

hi,install on ubuntu10.04 failed ,Is there anybody tell me Possible reason ?

http://www.niupic.com/images/2012/11/22/Xxcwy.jpg

Euh… ‘bluemind’ is not a valid domain name !
You should learn some DNS basics before installing a messaging system, because email handling and routing is tied to DNS configuration.

thanks! after I fixed the domain name,now it works well :slight_smile: