10-11-2017 11:41 PM - edited 10-11-2017 11:42 PM
10-12-2017 01:34 AMSolution
10-12-2017 01:23 PM
I addition to the other responses I'll like to provide you with a link to the Office 365 mail migration advisor as well as one for Onboarding and set up guidance.
Office 365 mail migration advisor
Deployment advisors for Office 365 services
10-13-2017 03:10 AM
You can also check out CodeTwo Office 365 Migration: https://www.codetwo.com/office-365-migration/?sts=6652 to migrate emails from Zimbra to Office 365 via IMAP. Just make sure IMAP is enabled on the source server, and you have a list of users' credentials to access the source mailboxes.
If you would like to give it a try, here you can download a free trial version: https://www.codetwo.com/office-365-migration/download?sts=6652.
If you have any questions about CodeTwo Office 365 Migration, give me a shout.
All the best,
05-01-2019 12:44 PM
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