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List:       postfix-users
Subject:    Re: reject_unknown_sender_domain seems not to work
From:       Wietse Venema <wietse () porcupine ! org>
Date:       2019-10-25 11:02:50
Message-ID: 4701RZ1my5zJrNv () spike ! porcupine ! org
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Lars Liedtke:
> Wrong: even with a domain that does not exist and a DNS-Lookup delievers
> NXDOMAIN still the Domain ist not rejected.
> 
> $ drill dgibsjaganicht.de
 ;; ->>HEADER<<- opcode: QUERY, rcode: NXDOMAIN, id: 31428

Please provide evidence that this query uses the same
resolver as Postfix.

Use tcpdump or some equivalent. 

	Wietse
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