Handling Messages in Quarantine
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General Information
Our email security system, quarantine@messaging.microsoft.com, may occasionally send you an email telling you that you have messages in quarantine. This document will briefly review what actions you can take after receiving one of these emails.
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Review Message
Clicking the Review Message link in the email will take you to our security.microsoft.com portal in your browser. You may have to sign in with your work email to view the page. From here, you can see all messages that the suspicious sender has sent to you and the reason that the quarantine filter caught them. In this case, Microsoft believes that these messages are spam.
If you check the box on a message, you can select to preview it, release it, or delete it. Take some caution when previewing a message here. If it is indeed malicious, then links within the previewed message may be fraudulent.
In this example, I do not believe this email to be malicious, but I also don't find it relevant to me and would consider it spam. I have no issue with simply deleting the messages.
If the messages were instead relevant to me, I might release them instead so that they could be delivered to my inbox.