Testing a New Exchange Hybrid Configuration with Office 365

Hybrid Test 1

• Create a test mailbox in Onpremise Exchange
• Verify Access using OWA
• Configure Outlook & Active Sync
• Verifying that the client experience of Exchange onprem is working (e.g. GAL visibility, free/busy lookups, ActiveSync device redirection)
• Verify the client is able to see the Exchange Online user accounts in the GAL and free/busy lookups
• Test mails from and to O365 mailboxes and onpremise mailbox

Hybrid Test 2

• Create a test mailbox in Office 365
• Verify Access using OWA
• Configure Outlook & Active Sync
• Verifying that the client experience of Exchange Online is working (e.g. GAL visibility, free/busy lookups, ActiveSync device redirection)
• Verify the client is able to see the onpremise user accounts in the GAL and free/busy lookups
• Test mails from and to O365 mailboxes and onpremise mailbox

Migrating a Mailbox to Exchange Online

Since now we have a test mailbox, Hybrid Test 1, on-premises with an Outlook profile and a mobile device connected, it will be a good candidate to test the mailbox migration process. • Moving a test mailbox from on-premises Exchange to Exchange Online

To initiate a mailbox migration use the Exchange Admin Center. Select the Office 365 section, and navigate to Recipients -> Migration.

After completing the migration you might also like to re-test mail flow and free/busy, just to be sure there's no lingering issues

Migrating a Mailbox to Exchange onpremise

Since now we have a test mailbox, Hybrid Test 2, on-Exchange Online with an Outlook profile and a mobile device connected, it will be a good candidate to test the mailbox migration failback process. • Moving a test mailbox from Exchange Online to on-premises Exchange

To initiate a mailbox migration use the Exchange Admin Center. Select the Office 365 section, and navigate to Recipients -> Migration.

After completing the migration you might also like to re-test mail flow and free/busy, just to be sure there's no lingering issues