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Jay Carper's avatar
Jay Carper
Brass Contributor
Nov 08, 2021
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How to adjust (not set) SCL for incoming messages in Exchange Online

Setting a specific SCL for an incoming message is easy, but I can't find a way to reduce or increase an SCL based on specific criteria. Is this possible with Exchange Online? If so, how do you do it?...
  • Jay Carper's avatar
    Dec 01, 2021
    After going back and forth with Microsoft for over a week, I finally got a definitive answer on this question:

    "I have finally received a response in regard to your inquiry. It was checked and double checked again to provide you the most accurate answer. No, there is unfortunately no way to subtract 1 from a message's spam score based on the sending domain even with Microsoft 365 Defender. We can only whitelist or set the SCL specifically as you already know. "

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