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Hybrid Migration Limits

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New Contributor

What is the limit on UserMailbox Size that can be migrated from Exchange 2010 to O365?

What is the limit on Archive Mailbox Size that can be migrated from Exchange 2010 to O365?

 

 

7 Replies
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Best Response confirmed by Chandan Kumar (New Contributor)
Solution

Hi Chandan,

 

The limits is 100Gb per Mailbox if you are using E3 or E5 and item is 150Mb.

 

You can view all limits here https://technet.microsoft.com/en-us/library/exchange-online-limits.aspx

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Will the limits apply for migration as well?

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Yes, as well for migration.

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What about migrating Archive Mailbox to O365? What is the limit on that?

 

100GB is for both User and Archive Mailbox combined, or 100GB each for user and archive mailbox.

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You can enable auto expanding archives if the limit reaches 100GB, depending on your license. But for migration, each 100GB limit for User and archive.
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Apart from any tool do we have any way to migrate archive mailboxes(that hosted in any archive solution like dell ) from exchange on premise to office 365 ?
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For E3 and above plans you can migrate user mailbox upto 100GB and archive it unlimited. For plans below Enterprise E3 it will be 50GB for User mailbox as well as archive>
Here is the Office365 Limitation link for more details:
 
 
 
Regards,
Akshay