Hello? (was Re: Adding Envelope Headers?)

[John Rudd]

On Feb 20, 2004, at 3:12 AM, Jan-Peter Koopmann wrote:

>> Users will NOT see the "Envelope-To" headers.  Your argument
>> does not hold.  Some MTA's will "do the right thing" with it.
>
> And some won't do the right thing. If you teach Exim (e.g.) to put in
> those headers they will simply stick in the message. And they are
> supposed to. Therefore the User will be able to see them in his MUA.

Then don't do it for all MTAs, perhaps just for new MTA's named "plain"
and "CGP" (or perhaps as a setting in the conf file).  I never said it
should be done for all cases, just that it would be useful in some
cases, and that it is not dangerous in all cases.

> Where is the problem to put in those header fields at your setup? Why
> should MailScanner do anything with it? I fail to see the positive
> side effect.

It will make supporting more MTAs (and those people who have wanted to
support RFC-822 type messages directly) easier.  CommuniGate Pro could
go from "use my wrapper scripts" to "supported directly by
MailScanner", for example.  Another bullet item on the list of
"supported MTA's".