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https://serverfault.com/questions/452013/how-to-disable-sender-non-delivery-notification-in-postfix
How to disable “sender non-delivery notification” in postfix? Ask Question Asked 7 years, 4 months ago. ... Rewrote comment from Gryphius This solution will be disable bounce service, ... disable “sender non-delivery notification” from MAILER-DAEMON. 0. Postfix …
https://serverfault.com/questions/920150/how-to-disable-sender-non-delivery-notification-in-postfix
It is strongly suggested that you do not disable NDR responses on any mail server. However, it is possible to disable NDR responses in Postfix if you would like to. Let me explain. Your urge to disable Non-Delivery Notifications (NDN) aka bounces messages probably arises from a good intent to avoid sending backscatter. Still, you need to be able to inform your own users if they are sending mail to …
http://www.postfix.org/DSN_README.html
Normally, Postfix informs the sender only when mail delivery is delayed or when delivery fails. What content is returned in case of failure: only the message headers, or the full message. An envelope ID that is returned as part of delivery status notifications. This …
https://www.linuxquestions.org/questions/linux-server-73/postfix-non-delivery-notification-4175500537/
Apr 04, 2014 · You don't want to accept mail for non-existant addresses then generate a bounce - that is called backscatter and can be used to spam people using YOUR server and YOU will get blacklisted because of it. Reject invalid addresses at SMTP time and the sending server generates the NDN.
https://www.howtoforge.com/community/threads/postfix-send-sender-non-delivery-notification-for-not-existing-domain-alias-account.70707/
Aug 05, 2015 · Postfix accept message and redirect to amavis; Amavis returned and postfix rewrite domain (Log 2) Postfix regonize not existing mailbox and create "sender non-delivery notification" for an not existing source address; I know, why it is happen. Postfix don't know in case of domain alias at first step, if the mailbox exist.
https://talk.plesk.com/threads/configure-postfix-bounce-notification-recipient.341062/
Nov 23, 2019 · The message to gmail bounces, and then it looks like Postfix tries to send the non-delivery notification to "[email protected]".I have mail disabled for all of my virtual hosts; they do not accept incoming mail, and in any case no such …
http://postfix.1071664.n5.nabble.com/Don-t-send-quot-sender-non-delivery-notification-quot-to-one-sender-td94736.html
We have a DMARC policy that forces DKIM headers on all mail and when Postfix sends a non-delivery notification to this bulk mail sender (a fake e-mail alias) it fails because of our DMARC policy. >> >> I have set notify_classes= to not receive any e-mails about errors/bounces but it looks like the non-delivery notifications still occur.
http://www.postfix.org/postconf.5.html
This service maintains a record of failed delivery attempts and generates non-delivery notifications. This feature is available in Postfix 2.0 and later. bounce_size_limit (default: 50000) The maximal amount of original message text that is sent in a non-delivery notification. Specify a byte count.
http://www.postfix.org/BACKSCATTER_README.html
If your machine receives backscatter mail to random addresses, configure Postfix to reject all mail for non-existent recipients as described in the LOCAL_RECIPIENT_README and STANDARD_CONFIGURATION_README documentation. If your machine runs Postfix 2.0 and earlier, disable the "pause before reject" feature in the SMTP server.
https://stackoverflow.com/questions/36236852/postfix-disable-bounce-for-transport
In the case of a non-zero exit status, a limited amount of command out- put is logged, and reported in a delivery status notification. When the output begins with a 4.X.X or 5.X.X enhanced status code, the sta- tus code takes precedence over the non-zero exit status (Postfix ver- sion 2.3 and later).
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