Author: Kirk Friggstad Date: To: Phil Pennock CC: exim-users Subject: Re: [exim] Filter question - getting "envelope-to" header via pipe?
Phil, thank you so much - that was exactly what I was missing (adding the "envelope_to_add" option to the "address_pipe" transport). Much appreciated!
On Saturday, July 23, 2011 at 02:40 , Phil Pennock wrote:
> On 2011-07-22 at 14:02 -0600, Kirk Friggstad wrote:
> > Everything works pretty much as expected - incoming mail gets saved in the mailattachments directory, and the perl script fires and gets the entire message on STDIN with no problems. However, I haven't been able to find how to find out the original address the message is sent to. In the saved copy, there is an additional header called "Envelope-to" that contains the original address, but this header doesn't appear to exist in the message as delivered to STDIN. I haven't been able to find the original address in any of the environment variables, and none of the string expansions that I've tried seems to have it either. I can't rely on the "To:" field either, as most of the messages are being forwarded from another account on another mail server.
>
> Find the "address_pipe" Transport definition; either change it, or copy
> it to a new name and change the value of "pipe_transport" on the
> "userforward" Router to reference the new name.
>
> Look at the "address_file" Transport, see the "envelope_to_add" option?
> That's what you want on the pipe transport used by this filter setup.
>
> > First question - is there a simple string expansion or some other place that I can pass the envelope-to information to the pipe script (as a command-line argument, etc.)?
>
> Loosely, you construct from $local_part@$domain -- but you might want
> the $original_* variants, might want to deal with affices, etc. I
> suspect that just setting envelope_to_add on the relevant pipe transport
> does everything you really want.
>
> > Second question - is there a better way to get all mail for a particular domain to feed through a custom script (that will also be able to pass along the envelope-to information) besides what I'm doing (catch-all to local account, .forward with pipe)?
>
> "Better" is a matter of taste. Custom Routers, with "unseen", etc. If
> you understand what your current setup does then that's better than a
> setup you have to study to understand, so probably best to stick with
> what you have.
>
> -Phil
