That's a problem with Hotmail, not Airbnb which is where you are posting your question. That being said, I can still help, first, you should be aware that Hotmail is actually Outlook now.
Here’s how to set up filters:
Open your Outlook inbox and click to select any message. Then, click the small three-dot menu on the right side of the top bar next to the word "Categories". On the resulting drop-down menu, choose Create rule. Give the filter a name - like "Airbnb". Fill in the following rules:
"When it includes these words....", "in the recipients address...." , type in "airbnb"
Deselect all other conditions to this rule. Now all email from the domain of Airbnb should go to your Inbox.