Outlook.com has blocked your message

Michel Kulhandjian 20 Reputation points
2025-12-20T16:37:02.6666667+00:00

I have received "Outlook.com has blocked your message" however I did not exceed my daily limit of messages. How to unblock my account so I am able to send again?

regards,

Michel

Outlook | Windows | Classic Outlook for Windows | For home
0 comments
Answer accepted by question author
John Jefferson Doyon 88,900 Reputation points Independent Advisor
2025-12-20T17:18:49.7833333+00:00

Hi, I'm John! I will help you with this.

This message usually means your account was temporarily restricted by Outlook’s spam protection, not because you hit a daily limit. It can happen due to repeated messages, links or attachments being flagged, or a recent sign-in from a new device or location.

Please try waiting 24 hours, then send a simple test email (no links or attachments). Also check your account security and change your password if you notice anything unusual. Make sure your account is fully verified, check that your security info (like your phone number or alternate email) is up to date at https://account.microsoft.com

I really hope this information is helpful! Let me know if you have any further questions or concerns.

Regards,

John J.D.

Was this answer helpful?

1 additional answer

Sort by: Most helpful
Most helpful Newest Oldest

  1. AI answer

    2025-12-20T16:37:11.6+00:00

    If your message has been blocked by Outlook.com, it may be due to various reasons, including spam detection or other security measures. To unblock your account and regain the ability to send emails, you can follow these steps:

    1. Check for Non-Delivery Reports (NDRs): If you received a non-delivery report, follow any instructions provided in the message.
    2. Use the Delist Portal: If you believe your IP address has been mistakenly blocked, you can request removal through the Office 365 Anti-Spam IP Delist Portal. Make sure to use the email address that received the block notification and the IP address specified in the error message.
    3. Contact Microsoft Support: If the issue persists, you may need to ask the recipient to contact Microsoft Support on your behalf, as external senders typically cannot open support tickets directly.
    4. Review Email Sending Practices: Ensure that your email practices comply with Microsoft’s guidelines to avoid future blocks. This includes avoiding spammy content and ensuring your email server is properly configured.

    Following these steps should help you resolve the issue and restore your ability to send emails from Outlook.com.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.