It appears that Brian E Carpenter <brian.e.carpenter@xxxxxxxxx> said: >On 26-Aug-23 09:58, Keith Moore wrote: > >... >> ... Or perhaps, collaborating with W3C to try to jointly identify a subset of HTML that makes sense for email. > >This. Is it really too late to try? That ship sailed at least a decade ago. For a good time, take a look at schema.org which has a whole bunch of sets of tagged HTML elements you can embed in messages and that a lot of large mail systems will interpret as things ranging from drug formulas to concert tickets. The SML WG is looking at standardizing it. R's, John