We have collected information about Sender Non Delivery Notification Postfix Ubuntu for you. Follow the links to find out details on Sender Non Delivery Notification Postfix Ubuntu.
https://www.howtoforge.com/community/threads/postfix-sender-non-delivery-notifications-go-to-root-not-the-sender.49839/
Nov 03, 2010 · postfix: sender non-delivery notifications go to root, not the sender. Discussion in 'Server Operation' started by vmos, Nov 3, 2010.
https://www.digitalocean.com/community/questions/postfix-send-email-but-it-s-not-received
Sep 17, 2014 · It looks like gmail indeed did receive it. Maybe they are blacklisting your ip. Check your mail logs to see if you are getting 421 or 550 errors coming back from google.
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