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Marc-8505 asked joyceshen-MSFT commented

Best practice to test the O365 Anti-spam

Once setup O365 Anti-spam [new Microsoft 365 Defender] what is the best way to test it?
Best practice, avoiding to expose the users too much, using specific tools, creating false email spam , trace, etc ...

Thanks

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Hi @Marc-8505

Is there any update? Have you tried the method below to test the antispam for your organization?

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AndyDavid answered

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joyceshen-MSFT avatar image
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joyceshen-MSFT answered

Hi @Marc-8505

Agree with the suggestions above from Andy.

Use the Generic Test for Unsolicited Bulk Email (GTUBE). It's a standardized spam signature used precisely for testing spam filters.

Put this in the body of the test email:

XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X
and it will force the mailb to be recognized as spam.

In addition to the spam, the official document also provided a way to Simulate a phishing attack. You could refer to this if you need.


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