Nothing huh?
Oh well I'll keep looking. I mean you can do this manually when you HELO mail directly off of a server from a port 25 telnet sesch...
In the mean time, I did discover a nice feature in thundebird that allows me to create 'identities' without an associated account which provides a drop down of the from field of my emails and allows me to choose from some preconfigured email addy's.
That'll do for now until I can write my own email client. (this means it'll do forever
)
-bear