Feature Request: Display HTML-based message in browser (rather than Mail)

You mean just the HTML body of the message?

Right. As a way of seeing what the message would look like in an HTML-enabled mail client such as Mail. Once I've checked it over with MailMate, I may want to see how the full version of the message would appear.

For messages you have composed yourself?

MailMate can display HTML for both incoming and composed messages? (Using a WebView which would be identical to what Safari does.)

In general, there's no easy way of knowing what an email is going to look like in other email clients unless you subscribe to one of the marketing-email-services which can generate this for you. Such services are quite expensive though.

Sure, I understand that HTML mail is crap, and that it is inconsistent between clients.

I don't see any option to view the message in a WebView; how do I do it?

Ah. Okay, that works. Cheers.

Well, actually, it doesn't.

Here's an email with a Content-Type: text/html tag, containing HTML code, but which does not preview as HTML in MM. I don't get an option to view the HTML body part. I've attached a screenshot of the View > Message Body Parts menu and of the original message for you to look at.

Hm. I quit MM, went through my com.freron.MailMate.plist file and deleted every Mm* entry that had a WebKit in it, and started the app up again, and now I get proper HTML display when I ask for it. Maybe something was messed up. Seems to be okay now.