On Thu, Jul 25, 2013 at 08:26:24PM +0200, Ralf Hildebrandt wrote:
> * Wietse Venema <wie...@porcupine.org>:
> > Fernando Gozalo:
> > > How can I deliver the messages to the mailbox of the sender
> > > instead of the mailbox of the recipient?
> >
> > /etc/postfix/main.cf:
> > smtpd_sender_restrictions = pcre:/etc/postfix/sender_access
> >
> > /etc/postfix/sender_access:
> > /.+/ redirect $1
>
> Doesn't this require ()?
> /(.+)/ redirect $1
I thought the same thing when I saw this, and I referred to the
pcre_table(5) manual:
Substitution of substrings from the matched expression
into the result string is possible using the conventional
perl syntax ($1, $2, etc.); ...
Basically it says "see the Perl documentation for their syntax."
I lost interest at that point. :) But I got reinterested with your
post, and made a simple test:
$ echo -e '/.+/ redirect $1\n/(.+)/ redirect $1' > pcre
$ /usr/sbin/postmap -q testing pcre:./pcre
postmap: warning: pcre map ./pcre, line 1: out of range replacement index "1":
skipping this rule
redirect testing
> or are the () implied if there's only one match group
So no, apparently you are right. Or this might vary with different
PCRE implementations?
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