How to keep new incoming messages in Spam/Trash if the email was already marked as Spam?

Help
#1

Once I mark an email as Spam, if the sender sends another email, I get the new email in my inbox folder but with the previous messages hidden. Can I somehow make it so all the new incoming emails go straight to the spam folder, not the inbox folder, if I mark them as spam once?

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^Example. I got this email in my inbox instead of not getting it at all. It should go to spam or trash.

#2

You can set up mail rules based on the sender address in the settings dialogue. Does this work for you?

#3

At that point, I think it would be easier to just delete the email. Adding a new mail fule for every spam mail takes a lot more time than just deleting it.