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How to set a filter for incoming messages on criteria in the message header?

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Friends: How to set a filter for incoming messages on criteria in the message header? Sometimes scammers / spammer make the email body impossible to detect key words but in the message header there are things I could set filter on to detect it as junk. Thanks.

Friends: How to set a filter for incoming messages on criteria in the message header? Sometimes scammers / spammer make the email body impossible to detect key words but in the message header there are things I could set filter on to detect it as junk. Thanks.

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Rules for message headers can be created by adding a custom header. In the Filter Rules window, click the criteria drop-down, the one that defaults to Subject, select Customize..., add the header, e.g. Content-Type or Reply-To. Filters can then be created based on the custom headers. The same method applies to Classic Search, Ctrl+Shift+F.