@Wende2 How odd. I never open a link from an email, myself. I always go to my hosting account to see whatever message they supposedly sent me in my Inbox, notifications or dashboard.
I once got an email inviting me to a host meetup. It was on Airbnb official letterhead, but not from an Airbnb URL. It had an RSVP button to click on, which I didn't do- I sent a screenshot to Airbnb, who confirmed it didn't come from them. I have no idea how those people got my email address, Airbnb swore they don't give out that info to someone organizing a host meet-up.