The regular HTML font tag is not as smooth or as rich as the CSS font; that's why we use CSS. By putting the CSS inside the body tag, it will be read by most email clients.

post one of the emails, that would help.<BR><BR>Also, you should have the CSS in the html file itself, nmot linked from an external server.

By putting the CSS inside the body tag, it will be read by most email clients. For them, we CREATE very clean, hard-coded HTML, without using any HTML generator tool such as Dreamweaver, and ...

yep, that's my question. can I just create any .html file with html/css/pictures/links, and insert the code into an email using an email client (in my case, Apple's Mail.app on MacOS X Tiger 10.4 ...

CSS tracking can only be prevented with text-based emails that do not use CSS. This is why Protonmail is the only client in the study that relies on obfuscation and loads all CSS content via a proxy.