I have successfully got Duo working with Azure AD using the integration guide here. Now I am trying to determine if the frequency of MFA request can be controlled for mobile devices? OWA prompts whenever you log in, but for o365 mail on a cellphone, once you multifactor it does not seem to prompt again. I’ve had it enabled on my account for about 2 months and have not had to multifactor since the initial setup. Is this working as intended, or is there an option in DUO or Azure that controls this?