Global Whitelisting does not work?!

Dec 19, 2020
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We have an external web shop running, which sends orders to us, with the order person as sender.
Of course our shop is not a designated mailserver for all these domains.
However I set the IP address of this shop on the Global Whitelist in the Rules section.
But it simply does not work. Any idea why??

Some of the mails get rejected by PMG. What else can I do?

I also put the subnet of the web shop to the "trusted network", but this also did not help.

Here is the log of a rejected mail:
Code:
May 26 13:05:18 pmg postfix/smtpd[6659]: connect from kn03.ab.net[168.222.4.132]
May 26 13:05:18 pmg postfix/smtpd[6659]: NOQUEUE: reject: RCPT from kn03.ab.net[168.222.4.132]: 554 5.7.1 <info@koellernowak.de>: Recipient address rejected: Rejected by SPF: 168.222.4.132 is not a designated mailserver for k.bilau%40kl.de (context mfrom, on pmg.koellernowak.de); from=<k.bilau@kl.de> to=<info@koellernowak.de> proto=ESMTP helo=<kn03.ab.net>
May 26 13:05:18 pmg postfix/smtpd[6659]: NOQUEUE: reject: RCPT from kn03.ab.net[168.222.4.132]: 554 5.7.1 <versand@koellernowak.de>: Recipient address rejected: Rejected by SPF: 168.222.4.132 is not a designated mailserver for k.bilau%40kl.de (context mfrom, on pmg.koellernowak.de); from=<k.bilau@kl.de> to=<versand@koellernowak.de> proto=ESMTP helo=<kn03.ab.net>
May 26 13:05:18 pmg postfix/smtpd[6659]: disconnect from kn03.ab.net[168.222.4.132] ehlo=1 mail=1 rcpt=0/2 data=0/1 rset=1 quit=1 commands=4/7

See also the screenshots of the rules section:
2021-05-26 16_44_19-pmg - Proxmox Mail Gateway.png2021-05-26 16_45_12-pmg - Proxmox Mail Gateway.png
 

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