not filtered

Sree 1,971 Reputation points

User published his email address on a website and he was unsurprisingly subjected to some spam emails (about 100). However what is concerning is that only a tiny proportion of these were classified as spam and quarantined/junked. 95% of the emails were delivered to inbox, and they look very suspicious in content. Please help why these were not detected,

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Accepted answer
  1. Kael Yao-MSFT 37,586 Reputation points Microsoft Vendor

    Hi @JustinMicheal-7973

    If you would like to report the suspicious messages, please refer to this link:
    Report messages and files to Microsoft
    For Outlook: Report false positives and false negatives in Outlook

    If the response is helpful, please click "Accept Answer" and upvote it.
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  1. Andy David - MVP 143.8K Reputation points MVP

    Can't tell you that, but why not set the user's junk mail settings to "Safe Senders Only" and at least most of those will go to junk,Safe%20Senders%20List%20check%20box.

    If you look at the headers of the message, you can see the SCL, but that wont necessarily help you figure out why they were allowed.
    Its also possible a transport rule allowed these.

    Check the anti-spam headers of a message and post here minus any personal info:

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