[Dovecot] Lost %d variable

[Aladdin]

> -----Original Message-----
> From: dovecot-bounces+aladdin=csunv.com at dovecot.org [mailto:dovecot-
> bounces+aladdin=csunv.com at dovecot.org] On Behalf Of Aladdin
> Sent: Monday, September 13, 2010 12:53 AM
> To: 'Stephan Bosch'
> Cc: dovecot at dovecot.org
> Subject: Re: [Dovecot] Lost %d variable
> 
> OK- and thanks again.
> 
> I'll check this out in detail tomorrow, but regarding "Also take a look
> at
> the MTA-specific pages...", I basically cut and pasted them into my
> exim4
> conf file.  I'll go through this in detail and post again.
> 
> > -----Original Message-----
> > From: dovecot-bounces+aladdin=csunv.com at dovecot.org [mailto:dovecot-
> > bounces+aladdin=csunv.com at dovecot.org] On Behalf Of Stephan Bosch
> > Sent: Sunday, September 12, 2010 8:15 PM
> > To: anw-dist at infoisland.net
> > Cc: Aladdin; dovecot at dovecot.org
> > Subject: Re: [Dovecot] Lost %d variable
> >
> >   On 9/12/2010 6:14 PM, Aladdin wrote:
> > > Thanks, Stephan, for the quick reply.
> > >
> > > Unfortunately, that doesn't seem to be the problem.  I don't have
> any
> > of the
> > > configuration options set to which that wiki page refers and I'm
> not
> > using
> > > SQL; furthermore, I set the "auth_debug" variable which that page
> > also
> > > recommended and it does not show any modification of the
> user/domain
> > > variables.  My logs and errors are identical to those on my OP.
> > >
> > > What else could be the problem?
> >
> > I must say I haven toyed with this for a long time.
> >
> > Well, clearly LDA is using a bare username and not
> username at domain.tld.
> > Now I am interested in how dovecot-lda is called from your MTA (e.g.
> > from Exim/Postfix/Qmail). Particularly these arguments are
> interesting
> > (http://wiki2.dovecot.org/LDA):
> >
> > -d <username>: Destination username. If given, the user information
> is
> > looked up from dovecot-auth. Typically used with virtual users, but
> not
> > necessarily with system users. -a <address>: Destination address
> (e.g.
> > user+ext at domain). Default is the same as username.
> >
> > Also take a look at the MTA-specific pages referenced from the LDA
> wiki
> > page for examples.
> >
> > Regards,
> >
> > Stephan.
> 

Sorry about the top posts; I thought that was netiquette for this list, but
was reminded on another list, and now see that this list doesn't top post
either.

OK, I've checked this out, and *seemed* to fix it.  I've move on to a new
error, but will not hijack my own thread.  However, this fix has raised a
couple of questions.

I'm using exim4 with strictly system users.  As stated earlier, I just
cut-and-pasted the section from the wiki into my exim4 file, so I started
out with this entry:

command = /usr/lib/dovecot/deliver

which according to the wiki should work.  Based on this response, I changed
it to this, which was cut from the *Virtual Users* section of the wiki:

command = /usr/lib/dovecot/deliver -d $local_part@$domain  -f
$sender_address -a $original_local_part@$original_domain

This raises several questions, so, in the interest of fooling myself into
believing I understand this, I'm going to ask them:

1. As printed in the wiki and quoted by Stephan, the documentation says, "-d
<username>: Destination username. If given, the user information is looked
up from dovecot-auth. Typically used with virtual users, but not necessarily
with system users."  So, why did I have to use it here?

2. Why do the -f and -a switches have to be given?  Aren't those things
unchanged in the mail header?

TIA,
Allen