O365 Mailbox Migration

Question

Can I migrate Mailboxes from a Dial-Tone Database to O365 exchange Online.

Answer 1

@Adekunle Deen

The Dial tone database is a temporary database for Exchange server, you need to follow this article below to merge dial tone database into a restored database. Then this mailboxes will be a full function mailboxes.

After that, you can migrate mailboxes from Exchange on-premises to Exchange online in many ways: such as hybrid migration, cutover migration.

For more detailed information, you can have a look about those articles:
Ways to migrate multiple email accounts to Microsoft 365 or Office 365
Perform a dial tone recovery

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Answer 2

Thank you. it was helpful.
I plan to move the mailboxes from the dailtone DB to a new Database because the old Database could be recovered. I had to use a 3rd party tool which automatically restores the mailboxes into the dialtone DB.