Documenting various stages of an Office 365 migration.
We will start with some of the steps to integrate an On-Prem Exchange 2010 environment with an Office 365 tenant. We were fortunate enough to have an ADFS environment already setup and in place. This saved a significant amount of time. You can find our ADFS setup and design information at the following link ( https://pipe2text.com/?page_id=310 ). My recommendation is to build out a high level of redundancy when setting up ADFS and definitely turn on Security Auditing in ADFS. I will post a Visio that provides a high level diagram of what we ended with up prior to starting on Office 365 shortly.