Server side rules for Spoof emails

Hi all,

Since we cannot enable DKIM and DMARC yet, I wonder if its possible to create server side rules to do the following:

If reply-to is not same as FROM, message should be put in junk folder.

Similar to this: https://blogs.technet.microsoft.com/eopinsights/2015/09/18/block-spoofing-in-office-365/

thanks!

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