[makmanalp]

These are awesome, but how is the backwards compatibility? I know I've seen coworkers having to deal with old versions of Outlook and Mail.app using terribly outdated rendering engines, not to mention strange-ass quirks that are even harder to test for than browsers. Web based clients are their own mess. Some escape certain things, some don't.

The final conclusion was to stick to table layouts for a few more years. Has this changed?