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Teams/Sites Directory – when migrating to Team Sites, choose to migrate to a URL starting with 'teams' or 'sites'.
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#POWERSHELL DOWNLOAD EXCHANGE PUBLIC FOLDER ATTACHMENTS HOW TO#
Recoverable Mail Items – Select how to include recoverable mail items when migrating from Exchange and Office 365.This is enforced for Office 365 regardless of setting, but disabled by default for other Exchange platforms as they may not support chunked/streamed uploads Use Chunked HTTP Web Requests – this is an optimisation for CloudMigrator that allows large files to be migrated without reading the entire payload into memory.See incorrect date ordering of emails in Exchange after migrating from G Suite for more information. Strip Received Headers – removes Received headers from emails and replaces them with a single header corresponding to the Date header of the email.If 'Modify Invalid Messages' in the common migration settings is turned on (which it is by default), then if messages are greater than this size, attachments may be removed to reduce the message size. Maximum File Size – the maximum message size that will be migrated to the destination system.Exchange 2010/2013/2016/Office 365 Calendar Timezone – set this to the default timezone that will be applied to appointments migrated to flavors of Exchange 2010+ when the timezone cannot be determined by other means Message Options.Exchange 2007 Calendar Timezone – set this to the default timezone to be applied to appointments migrated to Exchange 2007.Again this is pretty easy to do using the Managed API which extrapolates the GetAttachment operation as the load method on an attachment object.įoreach($attach in $msMessage. Once you have the message object you will have a list of attachments and the attachmentID you need to make a GetAttachment operations.
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To do this you first need a message object that you would normally get doing a GetItem operation in EWS in the managed API its just one line once you know the MessageID. So all you need to do with this Byte array is write it out to a file using the System.IO.FileStream Class. When working with Exchange Web Services you first need to use a GetItem operation to work out what attachments are on a message then use a GetAttachment operation which returns a Byte Array of each attachments content. A common and useful thing you may want to do in Powershell when working with Exchange Email automation is to download an attachment.