I would think that the court would require an acknowledgement from the father that he was aware of the child and was willing to waive his rights to custody.
I mean, what did this woman do, just state she had told him? Print out the facebook message?
None of that makes sense to me.
I’ve heard of worse. Much worse.
“US married father’s horror after wife places his child with an adopted family without telling him”
http://www.freerepublic.com/focus/f-news/2965568/posts