Best practice to test the O365 Anti-spam

Marc 631 Reputation points

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 ...


Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,323 questions
Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
1,862 questions
{count} votes

2 answers

Sort by: Most helpful
  1. Andy David - MVP 140.8K Reputation points MVP

  2. Joyce Shen - MSFT 16,641 Reputation points

    Hi @Marc

    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:

    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.

    If an Answer is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.