How to embed a html file as subject in a mail sending from Linux box with uuencode or mailx or any other way?
we do not want the file as attachment, it should be embedded in the mail subject.
Is it not possible?
Embedding an HTML file as a subject doesn't even make much sense. How big a file are we talking about here?
If you just mean HTML markup in the subject, throw it in HTML tags and see if it works. How the client interprets it is entirely up to the client and not you however, and the subject is supposed to be raw text, so it's quite likely they'll just get messed-up looking HTML tags in their subject lines instead of the markup you wanted.