Add header from mail client on the fly (X-TMDA:)

[C. Posey]

I am using a mail client that doesn't allow me to add any additional X-headers other than the standard ones. I thought I had read somewhere at the TMDA site that it was possible to add an X-TMDA: header into the Subject and have it parsed and striped on outgoing mail, but I can not seem to get this to work. Is this even possible or am I just imagining reading it.

For example - the standard outgoing is 5 days. What if I wanted to send out a one time e-mail from my client and have that one msg tagged as 1 day instead of 5. Can this be done on the fly?

- thx