Forum Discussion
Mike Lloyd-Jones
Mar 09, 2023Copper Contributor
IMAP email migration
I'm in the middle of migrating mailboxes from an IMAP server to 365.
On the IMAP end, I have a user who has 2 email accounts with 2 (large) mailboxes and wants them merged into one Exchange user mailbox / account.
Is this possible via standard migration tool ? I've migrated the first IMAP mailbox in one CSV file, but when I created a second CSV for the other I not unsurprisingly got the error:
"Error: UserDuplicateInOtherBatchException: The user 'blah' is already included in migration batch 'blah' Please remove the user from any other batch and try again."
I'm hoping to try and avoid a manual export/import of the second IMAP account if I can help it...
- gpalmaCopper ContributorJust a thought, have you tried dividing the migration batch into 2?
For example, creating a migration batch for IMAP account #1 into the O365 user. Then, after this completes, deleting the migration batch for IMAP account #1 and creating a new one for IMAP account #2 to migrate data into the O365 user.- Mike Lloyd-JonesCopper Contributor
gpalma Now that's a good idea ! Too late now (I manually exported the second one to PST and imported) but I suspect your idea would have worked....
- gpalmaCopper ContributorHey, but you know to try in the future! Manual migrations aren't too bad if you're dealing with just one user mailbox.
Can refer to this article on insight:
- Mike Lloyd-JonesCopper Contributor
Thanks but doesn’t answer question