On 31 December 2022 05:29:58 CET, Sean Hennessey 
<sean.hennes...@mercurygate.com> wrote:
>I'm doing some testing and am trying to figure out a way to set up postfix so 
>that it won't ever send a DSN.
>
>In googling around I found one option is to change the bounce service in 
>master.cf to use the discard service. That seems to stop the DSN for a bounce 
>to be sent out, but I get some warnings in the logs about attributes. I'm 
>assuming that's because the discard service doesn't really know how to 
>properly deal w/ a bounce request.
>
>bounce    unix  -       -       y       -       0       discard -v -v -v
>
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: connection established
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: master_notify: status 0
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: deliver_request_initial: 
>send initial status
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: send attr status = 0
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: vstream_fflush_some: fd 
>12 flush 10
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: vstream_buf_get_ready: 
>fd 12 got 522
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: bounce socket: wanted 
>attribute: flags
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: input attribute name: 
>nrequest
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: warning: unexpected 
>attribute nrequest from bounce socket (expecting: flags)
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: warning: 
>deliver_request_get: error receiving common attributes
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: deliver_request_final: 
>send: "" -1
>Dec 30 23:15:59 OptiPlex-9010 postfix/discard[17341]: send attr status =
>
>Is there a "correct" way to turn of all DSN notices for bounces?
>

Hello, Sean.

Have you tried the process described here:

http://www.postfix.org/DSN_README.html

André.

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