> (P.S. the mail client we're stuck with is lotus notes so outlook plugins won't
> do any good)

Notes is quite cool for these kinds of things. Remember it's a
database system, and it has quite a bunch of ways you can customize
it. You can edit the mail database template and update the design on
your mail database once you have made the appropriate changes. You can
add agents and stuff, or even add some @-formulas or lotusscript to
strip out that junk upon viewing of the message (although it would
still be present in the text just in case). Lotusscript is basically a
clone of VB in practice, so if you have ever programmed any Basic it
should be easy.

It's been a while since I used notes, but I remember you could do
anything you liked with it. I even wrote a database that would have
documents as instructions and a script that imported the Win32 API
DLLs and opened the serial port to talk to a robot over the RS232
port, sending each document as an instruction to do a certain action.
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