oftl--- via Postfix-users:
> On Mon, Jul 14, 2025 at 06:01:20PM +1000, Viktor Dukhovni via Postfix-users
> wrote:
> > On Sun, Jul 13, 2025 at 09:12:28PM +0200, oftl--- via Postfix-users wrote:
> >
> > > Have an already up and running postfix *also* relay everything to another
> > > postfix.
> >
> > Yes, via an envelope-recipient preserving PCRE recipient Bcc table, and
> > helper machinery to route and unmunge the addresses.
>
> Looks very interesting. But unfortunately there's no regexp support available.
> And the installations of postfix and OS are quite old. Old enough, so that i
> seriously do not want to touch it as long as the (currently dying) hardware
> works.
This could also be done with a regexp: table. This use case does
not require PCRE's expressiveness and speed.
main.cf:
regexp = regexp:${config_directory}/
recipient_bcc_maps = ${regexp}rcpt-bcc.regexp
bcc_generic_maps = ${regexp}bcc-generic.regexp
transport:
bcc.invalid bcc:[other.host.example]
master.cf:
bcc unix - - n - - smtp
-o { smtp_generic_maps = $bcc_generic_maps }
rcpt-bcc.regexp:
/^"(.*)"@(.*)$/ "rcpt-bcc-${1}=${2}"@bcc.invalid
/^(.*)@(.*)$/ rcpt-bcc-${1}=${2}@bcc.invalid
bcc-generic.regexp:
/^"rcpt-bcc-(.*)=(.*)"@bcc\.invalid$/ "${1}"@${2}
/^rcpt-bcc-(.*)=(.*)@bcc\.invalid$/ ${1}@${2}
Verified with
postmap -q - 'pipemap:{regexp:rcpt-bcc.regexp,regexp:bcc-generic.regexp}'
for quoted and unquoted localparts.
Wietse
Wietse
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