[quote user="tmstein"]
[quote user="Mike"]
... I suppose David might not want to put a full-blown HTML editor in there when perhaps very few people would use it. ..
[/quote]
What I had in mind was just the option to edit the html in a normal text editor. It could look like the raw view flap section when you open an html email. Some syntax highlighting would of course be nice but not essential as I could write the code in my html editor e.g. Homesite or whatever. The current PM "WYSIWYG" editor could remain as it is and could just ignore code it does not know.[/quote]
I wouldn't know anything about actually implementing something like that, and I couldn't really comment. At least your feature request is listed on the forum now.
What I can do is suggest how you could currently do what you want to do. I suggest Thunderbird would be the tool to use. I'd guess that, generally, people deliberately composing HTML mail for newsletters and suchlike for businesses would be using specialist tools not end-user email clients. I just took a look at the headers for a few. Most I've been sent don't record the X-Mailer. One has X-Mailer: aspNetEmail ver 3.1.5.0 which doesn't sound like an ordinary general-purpose mail client. The only email client for home users that I know of that does allow you to insert raw tags is Thunderbird - and, as I say, I think that's because they inherited the Netscape Composer code, which was really written for another purpose.
What you could do is write your HTML page in your favourite editor and save it. Then open the page in a web browser and view source. If you then start a Thunderbird email and click Insert > HTML a little composing window labelled "Enter HTML tags and text" pops up. The raw HTML, excepting everything outside the body tags, goes in there and can be further edited there if desired. Here's a page explaining the functionality:
http://kb.mozillazine.org/Edit_HTML_source
I'd send from there and pick up the results in Pegasus Mail, Thunderbird, and Outlook Express - and perhaps in Yahoo Mail, Gmail, and Hotmail webmail services, too. If the mail doesn't look as you'd wish in any of those, you could tweak the HTML code till it does.