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Subject: Re: "resubmission" feature
From: Lutz Vieweg (lkvisg.de)
Date: Tue Jul 04 2000 - 04:47:14 CDT

Wietse Venema wrote:

> If you want this soon, it would have to be implemented external to
> Postfix.

Ok, seems reasonable...

> This runs a script that
> pipes the mail into an at job that eventually sends the mail back
> to the forwarding user. The script would have to reject mail from
> strangers.

That's the point why I fear this feature could be impossible as an
external program.

The simple and sufficient criterion for me to decide whether the
sender is allowed to place such a "resubmission" is the IP-address
of the peer contacting the SMTP server. Only local ones would be
allowed.

But how can an external pipe transport find out this peer address -
is there any header postfix adds that I could rely on? Maybe because
it is in a certain position?

Regards,

Lutz Vieweg 

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