exchange-online-automatic-replies

Feature overview

Preparations

1. Create Azure automation account
   1. Create PowerShell runbook
   2. Enable managed identity
2. Create Azure key vault
   1. Create self-signed certificate
   2. Grant access for managed identity to certificate
3. Create Azure AD application
   1. Grant application permission Exchange.ManageAsApp
   2. Grant Azure AD role Exchange Administrator
   3. Attach certificate
4. (optional) Create Exchange Online application access policy
   1. Limit Azure AD application's permission to intended target mailboxes

Links

• Azure automation runbook
• Azure key vault
• Azure AD application
• Exchange Online app-only authentication