From: Noel Jones (njonesmegan.vbhcs.org)
Date: Tue Aug 05 2008 - 12:25:38 CDT

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Wietse Venema wrote:
> Richard Wolterink:
>> Aug 5 18:37:36 vps683 postfix/bounce[15429]: warning: unexpected
>> attribute W from bounce socket (expecting: nrequest)
>> Aug 5 18:37:36 vps683 postfix/bounce[15429]: warning: malformed request
>
> In master.cf you have turned on the wakeup timer for the bounce service.
>
> See: man 5 master.
>
> Only these entries have a wakeup timer by default:
> pickup fifo n - n 60 1 pickup
> qmgr fifo n - n 300 1 qmgr
> #qmgr fifo n - n 300 1 oqmgr
> tlsmgr unix - - n 1000? 1 tlsmgr
> flush unix n - n 1000? 0 flush
>
> Wietse

> It looks something goes wrong with bounces wich are generated for mails send to users which do not exist on the server. But what do these entries exactly mean and what can I do to correct them?

You should configure your system so it doesn't accept then
bounce unknown recipients; they should be rejected during SMTP
and not generate a bounce. Accepting and bouncing adds extra
load to your server, clogs your queue with undeliverable
bounces, and annoys innocent forged senders with your
backscatter. Here's a place to start with fixing the problem:
http://www.postfix.org/LOCAL_RECIPIENT_README.html

--
Noel Jones

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