Microsoft just released the Office 365 Mail Flow Guided Walkthrough (aka Troubleshooter).
The goal of this walkthrough is to assist you in troubleshooting problems sending and receiving mail or when mail is delayed in the following scenarios:
- The sender’s mailbox is hosted on Office 365 and the recipient’s mailbox is outside your organization.
- The sender’s mailbox is outside your organization and the recipient’s mailbox is hosted in Office 365.
- The sender’s and recipient’s mailboxes are both located in Office 365.
- The sender’s mailbox is hosted in Office 365 and the recipient’s mailbox is located on an on-premise Exchange server and both users are in the same organization.
- The sender’s mailbox is hosted on an on-premise Exchange server and the recipient’s mailbox is hosted in Office 365 and both users are in the same organization.
The walkthrough is designed to assist you in resolving these issues by focusing on the scoping and steps used to isolate and resolve problems.