I’ll try to keep it short: If you want to manage Exchange Online via Azure Automation, Managed Identities is what you should use (as of early 2023). Legacy approach In the past, RunAs Accounts or Plaintext Credentials (🤢) were also commonly used for this purpose, but this is now considered deprecated. RunAs accounts will be discontinued by fall 2023. And I don’t have to say anything about plaintext passwords, do I?...
You can register for a free Office 365/Microsoft 365 Tenant to try it out. Or you can add trial licenses to your existing tenant. You’ll get a 30 day trial phase. The trial contains 25 user licenses. After the expiration of the trial phase, you can delete the tenant or extend the trial. Alternatively you can purchase licenses to continue to use the services. A list of links to the trial licenes is further below in this article....
When the first users logged into Office 365 with his iPhone to sync his Contacts and Calendar, he got this dialogue: Need admin approval Apple Internet Accounts Apple Internet Accounts needs permission to access resources in your organization that only an admin can grant. Please ask an admin to grant permission to this app before you can use it. By the way, the app used to be called “iOS Accounts” and was apparently renamed in early 2020....