Unable to send any Mail messages - MAILER-DAEMON error 500.?

Me too. I got this message for the first time today after successfully using Yahoo Mail as my daily email account for many years. Used the Yahoo "Quick Fix" routine, and they say that nothing is wrong - except I STILL can't send emails!

It is really frustrating that there is no way to directly contact Yahoo Mail customer service.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.