Martin Gregorie <mar...@gregorie.org> wrote:
A correctly formatted message will have both the text/html part preceded by either a plaintext body or a 'text/plain' part: the latter is preferable.
No plain text part is required. There could be only one part, html, but it needs the right MIME header fields and format, which are not present there. Including a plain part is desirable in many cases but not all. Joseph Brennan Lead Email Systems Engineer Columbia University Information Technology