Defender preset security policies: which one, and how to change it

This sheet compares Correct pick, Wrong pick to avoid.

CriterionCorrect pickWrong pick to avoid
Standard sends BCL 6 bulk mail to Junk; it must go to quarantine instead, using only preset policiesAssign the Strict preset instead of Standard (Strict's bulk threshold is 5, and it quarantines)Edit the bulk email threshold inside Standard, or add a custom anti-spam policy alongside it (individual preset settings can't be edited; preset policies take precedence over custom ones)

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