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Line One
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On premises Exchange migration to Office 365

I would like to hear from people who have moved users from on-premises Exchange to Office 365 mail.  In particular I would like to know about any feature loss that users complained about or any  negatives about administering Office 365 mail versus on-Premises Exchange.
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Line One

8/22/2022 - Mon
M A

Vasil Michev (MVP)

You can get feature-by-feature comparison of Exchange Online vs On-prem in the following article: https://technet.microsoft.com/en-us/library/exchange-online-service-description.aspx
Sajid Shaik M

i found office 365 is the excellent hosting option, the only issue i face is the upload pst to office 365 ... but i managed it from outlook by copying e-mails from Exchange mail to Office 365 E-mail account... it'll takes bit time depends up on the internet speed...

the remaining things it's an excellent product...

easy Administration, and cost effective

all the best
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rwheeler23
Deeksha Negi

Hi lineonecorp,

This topic has been discussed earlier on this forum.
Please follow the link below to know about the solution to your issue:

https://www.experts-exchange.com/questions/28974921/Migrating-from-on-premise-Exchange-to-Office-365.html?anchorAnswerId=41833087#a41833087
Peter Hutchison

In a Exchange Hybrid mode, you can use the migration tools to migrate mailboxes to Office 365 instead of using PSTs.
Sharing of mailboxes and or calendars can be problematic between on-premise and Office 365. We found that it doesn't work that well, has anyone else come across this problem?
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Jeffrey Kane - TechSoEasy

I should also note -- you don't have to use Hybrid mode to avoid migrating via .pst file as Peter said above.  You can use a cut-over or staged migration as well.  The native migration tools in Office 365 will connect to your Exchange server and pull over everyone's mailboxes automatically if you like.
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Line One

ASKER
Jeffrey Kane:

Thanks for the detailed response of the advantages.  It seems a lot of the other responders didn't bother to read the question and gave advice about migrating from Exchange, hybrid environments - not at all related to what I actually asked - the user experience and the administration aspect.

You write the following:

"As for administration?  If you deploy Azure AD Connect (highly recommended) to sync user credentials between your on premise Active Directory and Office 365, you will have to administer most of the configuration for users in your ADUC console (if you like GUIs -- or through PowerShell)."  Is there really no GUI interface from MS for me to administer Office 365. So for instance I have a new user and I create an AD account for them - there is no MS equivalent to Amazon so the mailbox is created and it's attributes set via a GUI from on-premises? I find it odd that I would have to rely on Amazon to integrated my AD and Office 365.
Line One

ASKER
jhyiesla

Thanks for sharing your experience. It was exactly what I was looking for. The point about administration awkwardness is very good to know up front.  As far as Public Folders from what you can tell Office 365 would have the same functionality?

Also if you can detail any functionality loss at all it would be appreciated - sometimes there's an obscure function that in one organization only one person uses but in another everybody uses it so it's a big deal to lose. If you can think of any little 'loss' it would be appreciated.

A couple of other points.

As everything goes through the Internet have people noticed a slowdown in local mail?

Also do you have  off-line caching enabled and have you ever had to employ it because the internet is out and if so what was the experience for the users both during the outage and after recovery?  What happens with people with very large mail stores?

As far as archiving - any significant differences to that with on-premises Exchange and Outlook?

Finally one commenter noted that reponse time for problems after first signup was pretty good but slowed later? Have you had to call for support and for what kind of reasons and what was the overall experience?

Thanks for your further attention to this.
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Line One

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Thanks for all the real world input.  Great help.
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