Why do some emails sent from VM get into my Gmail Inbox? (PMS)
Why do some emails sent from Visual Matrix get into my Gmail Inbox, although my Gmail email IS NOT set up to receive those emails?
This seems to be a Gmail either bug or security setup to let you know some emails have been sent using your email.
The easiest way to get around that issue is to create a rule or filter to have all the emails received with a specific subject go to the trash or whichever folder you want.
To know how to create rules to filter your emails in Gmail.
You can find more information about this issue in different Gmails Communities of users: