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spam email

Mohamed Ismail 0 Reputation points
2026-03-26T21:46:35.6866667+00:00

Please note that I am receiving so many emails on Info email. I blocked so many other emails related to this thread, but I am still receiving emails from them.

Could you please check how you can support to block them. how to block them in office 365

Microsoft Security | Microsoft Defender | Microsoft Defender for Office 365

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  1. Q&A Assist
    2026-03-26T21:46:47.7333333+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To block persistent spam in Office 365/Outlook, use both per-sender blocking and junk email settings.

    1. Block individual senders from messages
      1. In Outlook, right-click a spam message.
      2. Select Junk (or Block) > Block Sender.
      3. Future messages from that address will go directly to the Junk Email folder or to End-User Quarantine if configured.
    2. Add addresses or domains to Blocked senders (Outlook on the web / new Outlook)
      1. At the top of the page, select Settings.
      2. Select Mail > Junk email.
      3. Under Blocked senders and domains, choose Add blocked sender.
      4. Enter:
        • A full email address to block a specific sender, or
        • A domain (for example, contoso.com) to block all senders from that domain.
      5. Select OK, then Save. Messages from those senders/domains will be delivered directly to Junk Email.
    3. Use Block or allow settings (Outlook Web App / Exchange Online mailbox)
      1. At the top of the screen, select Settings > Mail.
      2. Under Options, select Block or allow.
      3. In Blocked senders, enter the spam email addresses or domains in Enter a sender or domain here, then press Enter or select Add.
      4. Select Save.
      5. Optionally, to tighten filtering, enable Automatically filter junk email and use Safe Senders and Recipients so legitimate senders are not treated as junk.
    4. Periodically review Junk/Quarantine
      • Check the Junk Email folder regularly to ensure legitimate messages are not being blocked.
      • If End-User Quarantine is enabled by the administrator, review quarantined messages there as well.

    If spam continues from many different addresses, an administrator should configure higher-level anti-spam policies in Microsoft Defender for Office 365, but that configuration is outside the provided context.


    References:

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