Alan, The piece I left from the full header is the clue.
>Content-Type: multipart/mixed; boundary="==_20040822034701.8155-1_==" If your Apple Mail user had used plain text, the duplicate would not happen. Midi alan caused electrons to hula in cyberspace with: >I am getting the following behavior with mail received from >correspondents using Apple Mail: often, but not always, the body of the >mail is duplicated. I enclose one (edited) example. [snip] >Content-Type: multipart/mixed; boundary="==_20040822034701.8155-1_=="
