Hi there,
I'm Cherrelyn and I'm here to help.
Please try to double-check your junk and other folders like “Other” or “Clutter), make sure your email rules aren’t accidentally moving or deleting those messages, and review your blocked senders again just to be sure. If the company logs say Hotmail rejected the emails, it could be related to how those senders are set up sometimes issues with their email authentication like SPF or DKIM cause rejection. You might want to reach out to Microsoft support https://support.microsoft.com/ to ask them to check on their end, but meanwhile, asking those companies to verify their email settings can help too.
I hope this will help and If you have any question please feel free to ask.
Warm regards,
Cherrelyn