Not receiving emails outside my organization

Question

Around 1:15 PM I stopped receiving emails from outside my organization. I tested this out by sending an email from a personal email and nothing ever came up as well as through a system we use to email parents where I receive a copy of everything that was sent out and that copy never came through. I am able to send emails within the organization as well as receive.

Answer 1

If you are not receiving emails from outside your organization, there are a few potential causes to consider:

1. Network Configuration: Ensure that your network allows connections from the IP addresses used by external senders. If your organization uses a firewall or other security measures, it may be blocking incoming emails from external sources.
2. Email Filtering: Check if your email server or client has any filters or rules that might be blocking or redirecting emails from external senders. This includes spam filters that might be treating these emails as junk.
3. Email Throttling: If there has been suspicious activity detected from your IP address, Microsoft 365 may temporarily restrict mail from that source. This could result in non-delivery of emails from external sources.
4. Email Settings: Verify that your email settings allow for external emails. Sometimes, settings can inadvertently be changed, leading to issues with receiving emails from outside your organization.
5. Contact IT Support: If the issue persists, it may be necessary to contact your IT department or email administrator to investigate further. They can check the server logs and configurations to identify any issues.

By following these steps, you should be able to diagnose and potentially resolve the issue with not receiving emails from outside your organization.

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References:

• Microsoft 365 throttled traffic from my IP address
• Emails sent from Internet or application created emails are not delivered to users

Answer 2

Hello,

This can be related to the current service issue affecting commercial Microsoft 365 products. Microsoft communicated it here: https://status.cloud.microsoft/

If you are the admin user, you can also monitor it in Admin Center under MO1221364.