Rather than start this article with an appetizer, I’m going to switch things up and dive right into the meat and potatoes. Very soon, if not already, you will see two new entries to your Spam Filter in Exchange Online Protection, Allow Lists & Block Lists. As suggested by the name, this is a new way to manage allow and block lists within EOP. These new entries certainly don’t replace using Transport Rules to manage allow and block lists, but instead offer a simpler alternative.
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