Rclone mount blomp problem

This trick with the type alias is a very elegant solution: it simplifies a lot when typing commands.
However when I execute the command

df -hT

in the first column ("Filesystem") the following appears:

blomp-swift:email@example.com

The alias is just for simplifying rclone commands? Is there a way to specify the name which appears in the "Filesystem" column? Anyway, for security reasons, I would be happier to hide somehow the email address.