Disable DSN success notifications

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

Disable DSN success notifications

Steven Conrad Bayer
Hello,

we are using Debian 8 with Postfix 2.11.3 installed from Debian Repo and
want to disable DSN reports only for success notifications because we
are receiving many backscatter like this in the past days:

"MESSAGE DELIVERED SUCCESSFULLY

Your E-mail requested a delivery notice/return receipt for the following
addresses:

  <[hidden email]>:
  <<< Message delivered."

In the manpages we have only found the possibility to disable DSN
entirely with smtpd_discard_ehlo_keywords = silent-discard, dsn


Thanks and Best Regards

Steven

--
DigiOnline GmbH • Neusser Strasse 93 • 50670 Koeln
AG Koeln • HRB 27711 • St-Nr 521558110640 • USt-IdNr DE180751163
Geschaeftsfuehrer: Werner Grafenhain
https://www.digionline.de/impressum
Reply | Threaded
Open this post in threaded view
|

Re: Disable DSN success notifications

Matus UHLAR - fantomas
On 17.08.17 11:18, Steven Conrad Bayer wrote:

>we are using Debian 8 with Postfix 2.11.3 installed from Debian Repo
>and want to disable DSN reports only for success notifications
>because we are receiving many backscatter like this in the past days:
>
>"MESSAGE DELIVERED SUCCESSFULLY
>
>Your E-mail requested a delivery notice/return receipt for the following
>addresses:
>
> <[hidden email]>:
> <<< Message delivered."
>
>In the manpages we have only found the possibility to disable DSN
>entirely with smtpd_discard_ehlo_keywords = silent-discard, dsn

this has been discussed last ~1 month, you may search archives.

The only way now is to disable DSN at your network border.

other way seems to block senders or recipient domains, some seem to point to
the same MX/A records.
--
Matus UHLAR - fantomas, [hidden email] ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
BSE = Mad Cow Desease ... BSA = Mad Software Producents Desease