Hi @Stephen Molinelli ,
Welcome to our forum!
Please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client. Based on my research, i found that the undeliverable messages will be returned to the sender, and if you need to receive them, the sender will need to send them again.
If the above doesn't help, agree with Dave Patrick, it's suggested that you could post your case in dedicated forum for Outlook.com for more professional advice.
Hope the above help!
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