migrate from microsoft to other supplier

Please note that this is Hebrew Q&A Forum, any threads should be posted in Hebrew. However, I will still provide an answer on English based on your initial response. 

Hello אבי סולומון

Thank you for posting in Microsoft Q&A Forum.

From you description, I can understand that you want to migrate your email from Microsoft service to another Exchange provider and connect your Outlook client while syncing everything.

Here are some steps that you can kindly follow:

1. Assess your current Microsoft email setup and device on the migration method.
2. Plan the migration carefully, including testing with pilot users.
3. Update your DNS records to point to new provider.
4. Perform the migration of mailboxes, emails, calendars and contacts.
5. Reconfigure Outlook clients or create new profiles to connect to the new Exchange server.
6. Kindly verify that all data has migrated successfully and that email sending/receiving works properly.
7. Decommission the old Microsoft email system once the transition is completed.

I hope my answer helps, please feel free to let me know if you need any further assistance.

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