When Office 365 tried to send your message, the receiving email server outside Office 365 reported an error

If you have received an error message stating that Office 365 was unable to send your message due to an error in the “outlook” category, it means that the receiving email server outside of Office 365 has reported an issue. This error can occur due to various reasons, such as incorrect email addresses, server issues, or network problems.

To fix this problem, you can try the following solutions:

1. Check the recipient’s email address: Ensure that you have entered the correct email address of the recipient. A small typo in the email address can cause the email to bounce back.

2. Check your internet connection: Poor internet connectivity can cause issues while sending emails. Check your internet connection and try sending the email again.

3. Check the recipient’s email server: The issue could be with the recipient’s email server. Contact the recipient and ask them to check their email server for any issues.

4. Check your email settings: Ensure that your email settings are configured correctly. Check the SMTP server settings and make sure that they are correct.

5. Try sending the email again: Sometimes, the issue could be temporary. Wait for some time and try sending the email again.

If none of the above solutions work, contact your email service provider for further assistance. They will be able to provide you with more specific solutions based on the error message you have received.


I hope these solutions help you resolve the issue with sending your email. If you continue to experience problems, don’t hesitate to reach out to your email service provider for further assistance. Good luck!

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