For the last few months I have been having an issue with my Hotmail account not receiving all emails. I can send some test emails to it and they work, obviously other SPAM emails work too, however other legit emails aren't going through. One example is a prominent travel site that I have used for over a decade can no longer send emails and my itineraries to my Hotmail account. Sending them to other accounts work fine. Additionally, I have tested with another popular shipping site and they are not only not received but they specifically indicated that they are getting bounces back.
Now I have done all the standard things that the FAQs would tell you to, check storage, rules, filters, blocked sources, etc.. and all is clean and good. And yet still only select sources can't send email to my Hotmail account.