Why am I receiving an "Airbnb account login notification" email?
In your Airbnb settings, you can opt in to receiving security login email notifications when your account is accessed from a new server. We let Airbnb know that it's our server logging in to adjust your prices so they (and you!) know it's not someone random. See example email here.
This is for security purposes and if you do not want to receive these emails you can turn them off by logging into your Airbnb account, navigating to your security settings, and unchecking this box.