Re: 'piped' aliases & DSNs

5 msg	postconf not displaying all options
3 msg	empty_address_recipient not mapped by virtual o...
5 msg	stop smtp from anyone unless sasl auth?

'piped' aliases & DSNs
\ Jeff McCombs (23 Jul 2007)
. \ Victor Duchovni (23 Jul 2007)

12 msg	Strange From: in headers
5 msg	Mail - Access Denied
4 msg	qpsmtpd support service for postfix
39 msg	pix workaround broken?
2 msg	X-Original-To after bcc contains wrong address
8 msg	/usr/lib/sendmail delivery status/message id's ...
23 msg	Recommended Filesystems?
8 msg	Mail going to backup server instead main server
3 msg	outgoing rate control
5 msg	mail forwarding loop: how do I prevent this?
5 msg	Server relaying existing virtual mailbox
1 msg	how can I rewrite the Mail From
3 msg	Constant connections from user unknown sending ...
2 msg	sporadic deferrals
8 msg	transport_maps: different behavior if discard o...
4 msg	Address verification questions

Subject:	Re: 'piped' aliases & DSNs
Group:	Postfix-users
From:	Victor Duchovni
Date:	23 Jul 2007

On Mon, Jul 23, 2007 at 11:44:07AM -0500, Jeff McCombs wrote:

> Gang,
>
> It's probably easier to give some background first, then ask my
> question.
>
> We're sending messages through a postfix system with the
> 'sendmail -Nsuccess,failure -f<someuser>' command from some automated
> scripts. DSNs are processed by another script by way of a pipe from
> /etc/aliases, e.g:
>
> <someuser>: "|/path/to/script"
>
>
> What I'm looking for, is a way to keep the DSN on the queue if
> the script fails for whatever reason. Is there a exit/return code that
> the script can spit back that will keep the message on-queue and retry
> the DSN delivery after a time period? Right now if the script isn't
> executable, or has some sort of error, the DSN message is lost.

Test outside the production system, then deploy, but if you really must:

master.cf:
# Non-bounce clone of local transport.
nblocal unix - n n - - local
-o soft_bounce=yes

transport:
# This address should not bounce
someuser nblocal:localhost

main.cf:
transport_maps = hash:/etc/postfix/transport

--
Viktor.

Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the "Reply-To" header.

To unsubscribe from the postfix-users list, visit
http://www.postfix.org/lists.html or click the link below:
<mailto:majordomo?body=unsubscribe%20postfix-users>

If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.