This may have happened to you....
I am a verified host but the last 2 enquiries have gone along the lines of the followinmg. So watch out for it...
"Your property is posted by another host at another price. Check this listing link"
They provide me a link. The first time this happened I clicked on the link and it let to an irrelevant airbnb page.
Airbnb emailed me to say that this is likely to be scam:
"Rarely, fraudulent individuals misuse our site in the attempt to obtain offsite payment or to gain access to one’s account by communicating via personal email or phone, or by sending malicious links meant to capture your login credentials, and we wanted to alert you to the possibility of such a scam."
What I am doing is clicking the flag icon next to the suspicious messages, which Airbnb will look at and investigate.
Hope this helps.