Office 365 Mail Flow Topology

Often we are asked to describe the attributes of the Office 365 Mail Flow.  It’s not as easy as you think. To make it simple to understand, we have put this topology together.

This is a great tool that you can use when explaining the Office 365 mail flow to your security team, management and end-users.

Note that mail systems can inherently contain many components and variables that cannot be easily conveyed on a single diagram.