Migration of emails from Rackspace to Exchange

Manoj Rane 1 Reputation point
2021-11-15T08:41:11.267+00:00

I want to migrate emails from Rackspace to Exchange online.

I referred to this document: https://learn.microsoft.com/en-us/exchange/mailbox-migration/migrating-imap-mailboxes/migrate-other-types-of-imap-mailboxes#format-mailbox-admin-credentials-for-different-imap-servers

I am able to migrate mailbox when I specify id and password in the csv file for migration. But I am not able to migrate when I try with using credentials of admin user of Rackspace account. Following are some of the formats that I have tried and failed.

EmailAddress,UserName,Password
myUser@myorg.com,myorg/myAdminUser/myUser,myPassword

EmailAddress,UserName,Password
myUser@myorg.com,myorg.com/myAdminUser/myUser,myPassword

I get following error for both of these formats.
Error: MigrationPermanentException: The username or password for this account is incorrect, or IMAP access is disabled. --> The username or password for this account is incorrect, or IMAP access is disabled. --> Imap server reported an error during LoginCommand indicating that authentication failed: 'Authentication failed.'.

I am looking for a valid csv format.
Thank you.

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Amit Singh 4,901 Reputation points
    2021-11-16T12:22:05.01+00:00

    Here is the checklist for Migrate Rackspace to Exchange

    1. Create a Rackspace admin account.
    2. Unhide all objects.
    3. Identify the current server.
    4. Select your Office 365 plan.
    5. Add a business domain.
    6. Start Rackspace to Office 365 migration.
    7. Run Migration Batches.
    8. Enable users on Office 365
    1 person found this answer helpful.
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  2. Joyce Shen - MSFT 16,671 Reputation points
    2021-11-16T01:59:07.687+00:00

    Hi @Manoj Rane

    According to the csv format you shared above, it is suitable for Microsoft Exchange. Which means If you're migrating email from the IMAP implementation for Exchange, use the format Domain/Admin_UserName/User_UserName for the UserName attribute in the migration file.

    For your scenario, you are migrating from Rackspace, you will just need to use the format like below
    149566-image.png

    In addition, if you only failed to migrate one mailbox, you could also consider exporting and importing PST file to finish your migration.


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