Error: The syntax of the domain name, %1, is incorrect. DNS names may contain letters (a-z, A-Z), numbers (0-9), and hyphens, ...

***Error: The syntax of the domain name, %1,
is incorrect.
DNS names may contain letters (a-z, A-Z), numbers (0-9), and hyphens, but 
no spaces. Periods (.) are used to separate domains. Each domain label can 
be no longer than %2!d! bytes. You may not have every label be a number.
Example: domain-1.microsoft.com.