AWS Root User Management for SSO using Azure Active Directory - Part 2

Using a central IAM provider is certainly a great thing. While setting SSO up for AWS, the management for the AWS root-users became a issue, because its required for them to have globally unique e-mail address. This might not a problem for small companies, but if you plan several hundred or even thousand of AWS-accounts, this becomes a nightmare real fast. In this post, I will go over one approach on how you can manage all your root-users with M365 offerings and some Azure services, pretty much for free.
This is the second part of the series, that covers the Shared Mailbox Setup.

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