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Date: Tue, 12 Jul 2016 22:39:59 +0200
From: jens w <jw@lxsbbs.eu>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] executing a command as a nologin user
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Am Tue, 12 Jul 2016 16:17:42 +0200
schrieb wabe <wabenbau@gmail.com>:

> jens w <jw@lxsbbs.eu> wrote:
> 
> > .procmailrc
> > :0 c
> > * !^X-Loop: name@example.com
> > | formail -X "From:" | $HOME/bin/script.sh  
> > 
> > procmail.log
> > procmail: Executing " formail -X "From:" | $HOME/bin/script.sh
> > 
> > for incoming mail, a script is executed. logfile has the same entry
> > as it is in other users. but the script do nothing.
> > 
> > How executing a command as a nologin user?  
> 
> Is script.sh readable and executable for the procmail user?
> 
> Does script.sh contain a definition for a command interpreter 
> (something like #!/bin/sh)?

yes and yes.
it works for default user. it does not work for nologin user.
as workaround I forward the mail to a helper-user, and process it there