I usually handle mail on my Linux mail hub from emacs using mh-e. "It worked yesterday, I didn't change anything and All of a sudden sending e-mail is broken."
What still works is piping files directly to sendmail as in " cat file | sendmail -t". What is not working is comp -> whatnow -> send from a command prompt. I don't believe the "... I didn't change anything...." assertions when I am trying to help others, but I do not know what I did to cause this error. This started on a RH 7.2 system but continues since I upgraded the OS to the current RH (public) beta post: problem initializing server; [BHST] read from pipe timed out send: message not delivered to anyone Any clues gratefully received, dlg