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Problem with multi-factor authentication with multiple organizations
I'm using Teams with two different organizations, but a single O365 account. With my home organization, I have multi-factor authentication that has options to call/text my cell phone, call my hom...
Adding to this old topic as we now have a Trust MFA check box in the Cross-tenant access settings in Azure AD. In preview but works great.
MFA settings are defined in the tenant that you are logging into, regardless of where the account cone from as far as I know.
So if your MFA is wrong when logging in as a guest or not using the correct verification method you need to contact the admin for that tenant.
I do know that you can turn off email verification for MFA so if I have read your problem correctly that may have been done by the admin of the tenant you are trying to log into as a guest. The tenants I have access to they have turned odd or it has already defaulted to not be able to use email as the factor.
So if your MFA is wrong when logging in as a guest or not using the correct verification method you need to contact the admin for that tenant.
I do know that you can turn off email verification for MFA so if I have read your problem correctly that may have been done by the admin of the tenant you are trying to log into as a guest. The tenants I have access to they have turned odd or it has already defaulted to not be able to use email as the factor.