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Question How to hide Sender IP in Authentication-Results header?

hansitheking

hansitheking

Basic Pleskian
If SPF is switched on in Plesk in all E-Mails you will find the following headers exposing the client IP-Address (sender IP) how may I keep SPF switched on an remove the IP-Address?

Code: 
Authentication-Results: server.example.com;
spf=pass (sender IP is 45.33.243.102) [email protected]=router.internet.box
 
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