How does Mimestream work in terms of MFA? Im not familiar with how Goolge OAuth handles it, but if I granted access to Mimestream app from one machine, can the

How does Mimestream work in terms of MFA? Im not familiar with how Goolge OAuth handles it, but if I granted access to Mimestream app from one machine, can the same grant be used from another(i.e. bad actor's server)?