question on single label domain

Giganews Newsgroups
Subject: question on single label domain
Posted by:  bryan (imn…@home)
Date: Thu, 31 Jan 2008

i have inherited a domain that is a single lable from an NT4 migration.  it
does not have the traditional .com/.local

we are looking to install an exchange server soon.  will there be any
trouble from this model?  i have no experience with a domain that has no

is there a way to modify this?  or would migration be a better bet?