My dad got his DNA scanned and forwarded the results to me and my brother.

After he got his results, he heard from a relative, George Crawford, who tracked him down via the service. 

My dad says, “After my DNA results I received an email from a DNA match who turned out to be a grandson of Grandpa Crawford’s youngest brother.  Thought you might be interested in his emails.  -jerry”

He forwarded this thread of emails intoducting himself and sharing his knowldege of the family tree. Apparently George is really into geneology.