The letter: the New York Times is way too excited

The New York Times has a very long article about that brief letter that ostensibly was sent from Egyptian president to Israeli president.  The story is dead no matter what.  1) the Egyptian president denied it and diplomatic terms that denial settles the matter.  2) the letter does not carry the signature of the president, which is most unusual.  Yet, the New York Times tried to justify that by saying that it was "dictated".  What does that mean without signature in diplomatic practice?  Don't get me wrong. I am all for Zionists to continue to delude themselves that all is still well for them in Egypt.