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ImUzair's avatar
ImUzair
Copper Contributor
Mar 01, 2022

Failed IMAP Migration on Office365

I am having the following error while establishing a IMAP Migration Job from MDaemon to Office365

 

Error: TooManyTransientFailureRetriesPermanentException: The job encountered too many transient failures ‎(61)‎ and is quitting. The most common failure is ImapNoResponseException with the hit count 60. --> Imap server sent NO response to SELECT. Response code: ‎'‎', message: ‎'Access denied‎'.

 

I have tried just 1 user at the moment and getting the error.

 

Thanks.

Best Regards,

Muhammad Uzair

migration
networking
office 365

1 Reply

  • Love_M365's avatar
    Love_M365
    Copper Contributor
    Mar 04, 2022
    Are you using the user credentials or the admin account? If you are using admin account, you need to ensure your have full mailbox permission in source messaging system as well to read and copy the data from the mailbox. Refer section "Internet Message Access Protocol 4 (IMAP4) migration" from https://docs.microsoft.com/en-us/exchange/mailbox-migration/assign-permissions-for-migration

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