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Module 12Exchange Online Public FoldersPresenter namePresenter role

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Overview Public folder architecture in Exchange 2013 and Exchange online have changed significantly, this module will cover those changes that Exchange Online can now take full advantage of.

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Objectives After completing this module, you will be able to:• Understand the new modern public folder changes• Create and administer public folders in Exchange Online

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Public Folders in Exchange Online

• Public Folders is a new feature for Exchange Online

• They provide an easy and effective way to collect, organize, and share information with other people in your organization

• Designed for simple sharing needs and not for archiving data or document sharing and collaboration• SharePoint and Site Mailboxes fill that need

• Limited to 50 public folder mailboxes (50GB each), with the maximum total size of all public folder data not exceeding 2.5 TB

• Limited to 100,000 public folders in total

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Modern Public Folders

• Public folders in Exchange 2013 and Exchange online have been modernized to take advantage of the existing high availability and storage technologies of the mailbox database

• The public folder architecture uses specially designed mailboxes to store both the hierarchy and the public folder content

• Public folder replication now uses the continuous replication model

• High availability for public folder mailboxes is provided by a DAG in Microsoft’s datacenters

• Before you can create a public folder in Exchange Online, you must first create a public folder mailbox

• Public Folders are visible in both Outlook and OWA

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Modern Public Folders Comparison

Classic Public Folders Modern Public Folders

Public Folder Databases Public Folder Mailboxes

Public Folder Replicas Database Availability Groups

Public Folder Hierarchy Public Folder Hierarchy Mailbox

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Creating a Public Folder Mailbox

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Public Folder Hierarchy

• Only one writeable copy of the hierarchy is kept• Read only copies are replicated into each Public Folder

Mailbox

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Creating a Public Folder

• Only after creating a Public Folder Mailbox can Public Folders be created

• Folders can be created either by EAC, PowerShell, Outlook, or OWA

New-PublicFolder -name Sales -path \

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Public Folder Management in Exchange Online

In Exchange Online we will automatically perform the following public folder mailbox management tasks for you

• Automatic public folder moves based on public folder mailbox quota usage This process actively monitors your public folder mailbox quota usage to ensure you do not inadvertently fill a public folder mailbox and stop it from being able to accept new content for any public folders within it

• Automatic public folder mailbox creation based on active hierarchy connection count Exchange Online will actively monitor how many hierarchy connections are being spread across all of your public folder mailboxes. If this value goes over a pre-determined number we will automatically create a new public folder mailbox to spread the load

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Hybrid Cross-premises Public Folder Access

• Public folder data can be accessed cross-premises, but with limitationsOn-Premises

Exchange 2007 or Exchange 2010 User Mailbox

On-Premises Exchange 2013 User Mailbox

Exchange Online User Mailbox

On-Premises Exchange 2007 or Exchange 2010 Public Folders

Hybrid not applicable

Hybrid not applicable Supported

On-Premises Exchange 2013 Public Folders

Hybrid not applicable

Hybrid not applicable Supported

Exchange Online Public Folders Not supported Supported Hybrid not

applicable

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Cross-premises Public Folder Access

Some Public Folders are Mail-enabled

• Mail-enabled public folders (MEPFs) have addresses stored in ADThese e-mail addresses are stored on objects in Microsoft Exchange System Objects OU

• You must replicate the MEPFs to Exchange Online’s forestExchange Online’s directory must store a copy of the MEPFs, or else Exchange Online users will not see the MEPFs when browsing through their address lists

• Replicate MEPFs to Exchange Online’s Forest using scriptsScripts create directory objects; no content or permissions copied

• Scripts located at http://technet.microsoft.com/en-us/library/dn249373%28v=exchg.150%29.aspx

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Cross-premises Public Folder Access

Exchange online users must not touch public folders in Exchange online

• In hybrid environment, configure Exchange online to point to the on-premises public foldersSet-OrganizationConfig -PublicFoldersEnabled Remote -RemotePublicFolderMailboxes PFMailbox1,PFMailbox2,PFMailbox3

• PFMailbox1,PFMailbox2,PFMailbox3 are proxy mailboxesProxy Mailboxes are on-premises mailboxes which must be discoverable via AutoDiscover, must be accessible via Outlook Anywhere, and their Autodiscover endpoint must point to on-premises

• Refer to URL in Notes for additional configuration steps

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Migrating Public Folders

• Public folder data can be migrated into Exchange Online

• Currently only supports legacy Exchange versions (2007 or 2010) as the source

• Needs to be performed in a cutover or staged manner as clients can only see one public folder hierarchy, either on-premises or in Exchange Online

• Migration is driven from the Office 365 side and can only be performed via PowerShell using a set of custom scripts and the New-PublicFolderMigrationRequest cmdlet

Lab: Work with Modern Public Folders

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Module Review

• Before you can create a public folder what step must you do first?

• How many public folders can you create in Exchange Online?• What is the maximum size of a public folder mailbox?

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Module Summary

In this Lesson, you learned:• Public folders are now based on mailboxes• Public folders can take advantage of native Exchange high

availability features• For an end user, public folders still look and function the same

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© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION

© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION