I wonder if there was a problem with the capitalization in his email address. On his website the email address is
Luis.Faus@gmail.com while in the posting above it is
luis.faus@gmail.com. Think that could be why he did not get a confirmation?
I sent a short message complimenting him on his work to the Luis.Faus address and have not received any notice that it was rejected so I think that may be what the problem was.
Sent and received a response from Luis. He did say mine was the first he had received so I wonder if the capitalization in the email address is the answer.