Review your spam filter settings Check your current configuration and explore Microsoft’s recommendations on how to keep junk mail out of your inbox: Learn more Report phishing, spam, and unwanted messages Instead of just deleting suspicious emails, make sure to report them so they can be analyzed and blocked more effectively: How to report
Leverage Outlook’s built-in anti-spam protections Outlook includes a Junk E-mail Filter that automatically evaluates incoming messages and moves suspected spam to the Junk E-mail folder.
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Admins can learn how to use the Submissions page in the Microsoft Defender portal to submit messages, URLs, and email attachments to Microsoft for analysis. Reasons for submission include: legitimate messages that were blocked, suspicious messages that were allowed, suspected phishing email, spam, malware, and other potentially harmful messages.
Avoiding spam-like formatting or attachments If the issue still persists after your IT administrator has tried the recommended steps, the next best course of action would be to open a support request through the Microsoft 365 Admin Center.
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Spam or junk mail: There are many reasons you might receive junk email and not all junk mail is harmful. However, you can reduce the risks of attacks by taking steps to reduce the amount of junk mail you receive. Phishing: Phishing is an email that seems legitimate but is an attempt to get your personal information, credentials, or money.