Required use of multi-factor authentication impacts all Barracuda partners who are also Microsoft CSPs and who configure Azure AD in Barracuda Cloud Control. Barracuda Cloud Control does not yet support the use of Azure MFA, which causes login failures if Azure MFA is enabled or required. As a workaround, configure a conditional access policy in Azure AD to bypass the multi-factor authentication for users signing in from trusted IPs.
To configure a conditional access policy and enable trusted IPs, refer to the section on Trusted IPs in the Microsoft support article Configure Azure Multi-Factor Authentication settings.
The following Barracuda IP addresses must be used to create the conditional access policy: