John L. Ries wrote:
While the most commonly used mailers all support MIME, many people still use ones that don't (I used to until I started getting so many MIME messages I had to switch),
BTW, supporting MIME is not the same as HTML. My mail client supports MIME, e.g. for attachments, or encryption/signature as OpenPGP/MIME. It can extract the HTML part, and in principle I could read it with a browser. But I have no intention to do so. In most (>>99%) cases, HTML doesn't add anything useful that can't be expressed in plain text (the remaining few cases, e.g. discussion about a particular layout element of the web pages, though these should rather go to gpc-doc, could use an explicit HTML attachment, which is not the same as a multipart message, stating in the message why HTML is attached). Far more often, HTML causes problems or contains some kind of malware.
Frank