The domain that you specified cannot be verified.
Do the following:
Ensure that the domain you specified is the domain from which you want to import user profiles.
Ensure that the specified domain is valid. To do this, contact the domain administrator.
If you want to remove the specified domain, do the following:
On the Site Settings page, in the User Profile, Audiences, and Personal Sites section, click Manage profile database.
On the Manage Profile Database page, in the Profile and Import Settings section, click the link next to Source of user set.
Configure the profile import to use a valid domain.