It seems that you have already checked many common issues that could prevent emails from reaching your Hotmail account. Since the sender confirms successful delivery and no other users are experiencing this issue, it could be related to server-level filtering or other configurations within your email settings.
Here are a few additional steps you can take to troubleshoot the issue:
- Check for Non-Delivery Reports (NDRs): Sometimes, if emails are blocked or filtered, you might receive a non-delivery report. Check if you have received any NDRs that could provide more information about the issue.
- Review Spam Filtering Settings: Although you have checked the Junk folder, ensure that the spam filtering settings in your Hotmail account are not overly aggressive. You might want to temporarily adjust these settings to see if it affects the delivery of emails from that specific sender.
- Contact Support: If the issue persists, you may want to reach out to Microsoft support for assistance. They can provide insights into whether there are any server-level blocks or filtering affecting the delivery of emails from that domain.
- Sender's Email Configuration: Ask the sender to check their email configuration, including SPF, DKIM, and DMARC settings, to ensure that their emails are not being flagged as spam by your email provider.
By following these steps, you should be able to identify or resolve the issue preventing emails from reaching your account.
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