El 2017-11-03 15:15, Noel Jones escribió:
On 11/3/2017 6:26 AM, nico...@devels.es wrote:
El 2017-11-03 11:05, wie...@porcupine.org escribió:
Noel Jones:
On 11/2/2017 7:48 AM, nico...@devels.es wrote:
> Hi,
>
> I'm running Postfix 2.9.6 and I'm trying to do a conditional
sender
> rewrite based on recipient address. Machine sends e-mails as
> r...@internal-domain.com by default, but if the recipient is
> u...@external-domain.com I want to rewrite sender to be
> r...@different-domain.com.
>
> To do so, I've tried doing the following:
>
> 1) In master.cnf I added:
> toext unix - - n - - smtp -o
> canonical_maps=hash:/etc/postfix/generic_toext
Perhaps with smtp_generic_maps, but not with canonical
maps because that happens before the queue.
Wietse
Thank you.
By now I'm trying to implement a content filter to change some
headers of the received message. To do that, I added a service to
the master.cf file:
external unix - n n - - pipe
flags=Fq user=user:user argv=/opt/scripts/external.sh ${recipient}
The script is a very simple bash script that replaces the 'From'
header:
#!/bin/bash
content=$(cat)
contfin=$(sed 's/From: r...@original-domain.com/From:
r...@modified-domain.com/' <<< "$content")
TMPFILE=`mktemp`
echo $contfin > $TMPFILE
cat $TMPFILE | /usr/sbin/sendmail -G -i -f
r...@modified-domain.com -- $1
/bin/rm -f $TMPFILE
exit $?
In transports map file (postmapped):
destinar...@user.com external:
The script seems to do what it should, however, in the Postfix logs
it seems to loop, like the message was put in the queue again and
passed to the queue over and over (and the message never arrives):
Yes, it does loop because the transport map will always send the
mail to the 'external' transport.
Two choices to fix this. The clean way is to setup a second postfix
instance and have your script submit the mail to that second
instance. This clearly separates the mangle and delivery functions
and will be fairly easy to maintain.
http://www.postfix.org/MULTI_INSTANCE_README.html
The other way is to have your script also mangle the envelope
recipient address so the transport table no longer matches. Then
use smtp_generic_maps to correct the recipient address during delivery.
Got it, I'll try to go the clean way.
Thanks so much.
Nicolás
-- Noel Jones
