dsn=5.4.6, status=bounced (mail for gmail.com loops back to myself)

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If you are using NAT make sure DNS have destination IP address

-A PREROUTING -d 192,168.4.111/32 -i enp0s31f6 -p tcp -m tcp --dport 25 -j DNAT --to-destination 192.168.1.111:25

One thought on “dsn=5.4.6, status=bounced (mail for gmail.com loops back to myself)”

  1. Filipi Souza

    I had this problem, I didn’t specify ‘-d ‘.

    And I spent days trying to find the problem in the Mydestination parameter of Postfix or DNS.

    Reply ↓

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