This Google Apps Script performs a very basic check of the email header looking for a fail message from spf or dkim checks. If found, it sends the message to spam and apples a label so you can easily identify the script that placed the message in the spam folder.
This functionality is part of a larger suite of Gmail Management Functions I'm building to reduce the amount of time wasted on worthless or unwanted messages.
This automation is free software for personal use.
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