Hybrid Move Request Error

Error: This mailbox exceeded the maximum number of large items that were specified for this request.



Exchange Online has a limit of 35MB each mail moved to EO, which includes all attachments and else in the mail.

For receiving/sending mail you have a limit of 25MB each mail in Exchange Online.

You would have to find mail exceeding 35MB and archive them somewhere else. Mail isn’t suppose to be your archive for attachments.

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I am Roy Apalnes, a Microsoft Cloud Evangelist working av Sopra Steria. Main focus in Microsoft Security and Endpoint Management, with a bigger picture in mind.

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