O365
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The InnerException message was ‘Maximum number of items that can be serialized or deserialized in an object graph is ‘2000000’.
This was quite an interesting error for a mailbox I tried to migrate from Exchange 2013 to Exchange Online. The mailbox synced to 95% and I received the below error after I tried completing the batch. Error details: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:ISourceFolder_EnumerateChanges2Result. The InnerException message was ‘Maximum number of items that can be serialized or deserialized in an object graph is ‘2000000’. The key to this error is the object graph limit that is set in the MsExchangeMailboxReplication.exe config file. To resolve the issue do the following: Logon to your on premises Exchange…
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Error: MigrationRecipientNotFoundException: A recipient was not found for “mailboxName”
If you received the error “Error: MigrationRecipientNotFoundException: A recipient was not found for “mailboxName”” when migrating a mailbox to Exchange Online (Office 365) then check for the below AD attributes. The error from the Exchange Admin Portal on Office 365: Open the on premises Exchange Management Console and search for the user. You should see the mailbox shows it’s a Linked Mailbox instead of a Remote Mailbox as expected: To rectify this, open AD Attribute Editor and browse to the msExchRecipientTypeDetails attribute. You should see the below: Change the Value of 2 to 1 for msExchRecipientTypeDetails as you need the mailbox to show as a user mailbox on premises before…