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Office 365 migration from On-Premise

Just reaching out for some opinions on how I should migrate existing data as we move from on-premise exchange to o365/exchange online.

We have a simple setup, single exchange server about 75 users. So I was debating between 2 strategies.

1. Just hard cutover and then over the course of a week, export and import PST's.
2. Do a hybrid deployment and live migration. Seems a bit complex, but not really since I'm working on the AD sync anyway. We use a non-routable domain but I'm adding the UPN suffix now.

What would you guys do? 1 seems easy to setup harder to do, and 2 seems harder to setup easier to do.

Little apprehensive on 2, because I'm not sure what if any more SSL certs I'll need, and we use a 3rd party filter web filter that is before exchange. My thought was to route all emails through EOP and just bypass that.

bhieb

ASKER

Just browsing through my options in the admin portal, and cutover looks like a good compromise. I don't mind a bit of downtime while it copies.

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Vasil Michev (MVP)

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bhieb

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Exchange 2010 , ad is at 2008. I already have a SSL for owa and auto discover I think will work. We are upgrading office anyway so creating a new mail profile is no biggie.

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Deepin

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Adam the 32-bit Aardvark

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