I haven't been receiving some messages sent to an email address which forwards the messages to my hotmail email address. I have confirmed with the administrator of the forwarding domain that the messages were forwarded successfully to hotmail, and can provide logs if necessary. 

I do not use a client to receive my email, and I check my Junk folder daily. I am very confident that I did not receive these messages at all.  

I was in the BCC field of all of them, and both subjects contained a special character. 

White listing the senders is not a workable solution, as I regularly need to receive email from the public. 

Any idea what the problem could be?

Thanks!