I've never used Postfix (I think it's come along since I've been involved with electronic mail to a significant extent) but it should be possible. In fact, I think using an MTA like Postfix or sendmail would be a good idea.

I'm sure the terminology is different, but with sendmail, you can define a delivery agent (external program?) using SMTP (the basic MDA is /bin/mail). Remember that I said that you can set up Mailman to use whatever transmission script you want. One possibility would be to send all outgoing mail to localhost and allow Postfix to pick it up. It might be possible to fork a postfix process directly. (You can send mail by typing sendmail at the bash prompt, but you have to type in everything, including at least a minimal message header). The point is that you'd finesse the whole issue by accepting mail on a port that only allows connections from localhost.

I'm sure there are other (no doubt, better) ways to do it. This is just the first possibility that occurs to me.

===
Gregory Woodhouse

"Education is a progressive discovery
of our own ignorance."
--Will Durant



On Oct 3, 2005, at 3:55 AM, Usha wrote:

I wanted to use Postfix for this purpose. The problem is that I am not sure of the command to specify for "External command to use instead of mailbox delivery" field.
Is it supposed to be "gtm"? But then how (process or option) will these messages be dealt with in VistA?
 
Regards
Usha

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