Multi-Factor Authentication (MFA) is the concept that hardens the security of authentication services by adding an additional layer of verification to conventional user name and password based authentication. For example, this could be an SMS, a phone call or smart card, etc… MFA has been around in the industry for quite some time now and many of us have… Read More »
I was working at a customer’s location few days back on an Office 365 hybrid deployment. I faced an issue where one of the users that was being synced from the on-premises Active Directory was having a different UPN on the Azure AD. This user’s original UPN was changed in the on premises Active Directory because of… Read More »
I was working on an Exchange Online and Exchange Server hybrid environment where the customer complained that on premises users cannot view free/busy status of Exchange Online users. Primary cause for this issue to occur is, if certificate and other metadata information in the Microsoft Federation Gateway or in the on-premises environment become stale or invalid.
Error: MigrationPermanentException: You can’t use the domain because it’s not an accepted domain for your organization. –> You can’t use the domain because it’s not an accepted domain for your organization. A small configuration mistake that can go unnoticed to many system admins who are new to Office 365 and Microsoft Exchange hybrid environments will result in above… Read More »