[SML] HTML message weirdness

[Noah Price]

Mick Alderson wrote: 
> ... Jerry ... some of your messages seem to be HTML only and no text
> part, and comes through to digest with content completely scrubbed

Jerry Durand wrote:
> Different devices and Thunderbird doesn't have sync yet like Firefox
> has. Need to manually sync all my devices.

Any idea which devices/programs/apps are sending HTML without a text part? I'm wondering how common that might be.

Thanks,

Noah