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In-Place eDiscovery


Applies to: Exchange Server 2013, Exchange Online

Topic Last Modified: 2014-03-24

If your organization adheres to legal discovery requirements (related to organizational policy, compliance, or lawsuits), In-Place eDiscovery in Microsoft Exchange Server 2013 and Exchange Online can help you perform discovery searches for relevant content within mailboxes. Exchange 2013 and Exchange Online also offer federated search capability and integration with Microsoft SharePoint 2013 and Microsoft SharePoint Online. Using the eDiscovery Center in SharePoint, you can search for and hold all content related to a case, including SharePoint 2013 and SharePoint Online websites, documents, file shares indexed by SharePoint, mailbox content in Exchange, and archived Lync 2013 content. You can also use In-Place eDiscovery in an Exchange hybrid environment to search on-premises and cloud-based mailboxes in the same search.

In-Place eDiscovery is a powerful feature that allows a user with the correct permissions to potentially gain access to all messaging records stored throughout the Exchange 2013 or Exchange Online organization. It's important to control and monitor discovery activities, including addition of members to the Discovery Management role group, assignment of the Mailbox Search management role, and assignment of mailbox access permission to discovery mailboxes.


How In-Place eDiscovery works

Exchange Search

Discovery Management role group and management roles

Integration with SharePoint Server 2013 and SharePoint Online

eDiscovery in an Exchange hybrid deployment

Discovery mailboxes

Using In-Place eDiscovery

Estimate, preview, and copy search results

Export search results to a PST file

Different search results

Logging for In-Place eDiscovery searches

In-Place eDiscovery and In-Place Hold

Preserving mailboxes for In-Place eDiscovery

In-Place eDiscovery limits and throttling policies

In-Place eDiscovery documentation

In-Place eDiscovery uses the content indexes created by Exchange Search. Role Based Access Control (RBAC) provides the Discovery Management role group to delegate discovery tasks to non-technical personnel, without the need to provide elevated privileges that may allow a user to make any operational changes to Exchange configuration. The Exchange admin center (EAC) provides an easy-to-use search interface for non-technical personnel such as legal and compliance officers, records managers, and human resources (HR) professionals.

Authorized users can perform an In-Place eDiscovery search by selecting the mailboxes, and then specifying search criteria such as keywords, start and end dates, sender and recipient addresses, and message types. After the search is complete, authorized users can then select one of the following actions:

  • Estimate search results   This option returns an estimate of the total size and number of items that will be returned by the search based on the criteria you specified.

  • Preview search results   This option provides a preview of the results. Messages returned from each mailbox searched are displayed.

  • Copy search results   This option lets you copy messages to a discovery mailbox.

  • Export search results   After search results are copied to a discovery mailbox, you can export them to a PST file.

Estimate, Preview, Copy, and Search Results

In-Place eDiscovery uses the content indexes created by Exchange Search. Exchange Search has been retooled to use Microsoft Search Foundation, a rich search platform that comes with significantly improved indexing and querying performance and improved search functionality. Because the Microsoft Search Foundation is also used by other Office products, including SharePoint 2013, it offers greater interoperability and similar query syntax across these products.

With a single content indexing engine, no additional resources are used to crawl and index mailbox databases for In-Place eDiscovery when eDiscovery requests are received by IT departments.

In-Place eDiscovery uses Keyword Query Language (KQL), a querying syntax similar to the Advanced Query Syntax (AQS) used by Instant Search in Microsoft Outlook and Outlook Web App. Users familiar with KQL can easily construct powerful search queries to search content indexes.

For more information about the file formats indexed by Exchange search, see File Formats Indexed By Exchange Search.

For authorized users to perform In-Place eDiscovery searches, you must add them to the Discovery Management role group. This role group consists of two management roles: the Mailbox Search Role, which allows a user to perform an In-Place eDiscovery search, and the Legal Hold Role, which allows a user to place a mailbox on In-Place Hold or litigation hold.

By default, permissions to perform In-Place eDiscovery-related tasks aren't assigned to any user or Exchange administrators. Exchange administrators who are members of the Organization Management role group can add users to the Discovery Management role group and create custom role groups to narrow the scope of a discovery manager to a subset of users. To learn more about adding users to the Discovery Management role group, see Add a User to the Discovery Management Role Group.

If a user hasn't been added to the Discovery Management role group or isn't assigned the Mailbox Search role, the In-Place eDiscovery & Hold user interface isn't displayed in the EAC, and the In-Place eDiscovery cmdlets aren't available in the Exchange Management Shell.

Auditing of RBAC role changes, which is enabled by default, makes sure that adequate records are kept to track assignment of the Discovery Management role group. You can use the administrator role group report to search for changes made to administrator role groups. For more information, see Search the Role Group Changes or Administrator Audit Logs.

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Exchange 2013 and Exchange Online offer integration with SharePoint 2013 and SharePoint Online, allowing a discovery manager to use eDiscovery Center in SharePoint to perform the following tasks:

  • Search and preserve content from a single location An authorized discovery manager can search and preserve content across SharePoint and Exchange, including Lync content such as instant messaging conversations and shared meeting documents archived in Exchange mailboxes.

  • Case management eDiscovery Center uses a case management approach to eDiscovery, allowing you to create cases and search and preserve content across different content repositories for each case.

  • Export search results A discovery manager can use eDiscovery Center to export search results. Mailbox content included in search results is exported to a PST file.

SharePoint also uses Microsoft Search Foundation for content indexing and querying. Regardless of whether a discovery manager uses the EAC or the eDiscovery Center to search Exchange content, the same mailbox content is returned.

In on-premises deployments, before you can use eDiscovery Center in SharePoint to search Exchange mailboxes, you must establish trust between the two applications. In Exchange 2013 and SharePoint 2013, this is done using OAuth authentication. For details, see Configure Exchange for SharePoint eDiscovery Center. eDiscovery searches performed from SharePoint are authorized by Exchange using RBAC. For a SharePoint user to be able to perform an eDiscovery search of Exchange mailboxes, they must be assigned delegated Discovery Management permission in Exchange. To be able to preview mailbox content returned in an eDiscovery search performed using SharePoint eDiscovery Center, the discovery manager must have a mailbox in the same Exchange organization.

For step-by step instructions for setting up an eDiscovery Center in an Office 365 organization, see Set up an eDiscovery Center in SharePoint Online.

To successfully perform cross-premises eDiscovery searches in an Exchange 2013 hybrid organization, you will have to configure OAuth (Open Authorization) authentication between your Exchange on-premises and Exchange Online organizations so that you can use In-Place eDiscovery to search on-premises and cloud-based mailboxes. OAuth authentication is a server-to-server authentication protocol that allows applications to authenticate to each other.

OAuth authentication supports the following eDiscovery scenarios in an Exchange hybrid deployment:

  • Search on-premises mailboxes that use Exchange Online Archiving for cloud-based archive mailboxes.

  • Search on-premises and cloud-based mailboxes in the same eDiscovery search.

  • Search on-premises mailboxes by using the eDiscovery Center in SharePoint Online.

For more information about the eDiscovery scenarios that require OAuth authentication to be configured in an Exchange hybrid deployment, see Using OAuth Authentication to Support eDiscovery in an Exchange Hybrid Deployment. For step-by-step instructions for configuring OAuth authentication to support eDiscovery, see Configure OAuth Authentication Between Exchange and Exchange Online Organizations.

After you create an In-Place eDiscovery search, you can copy the search results to a target mailbox. The EAC allows you to select a discovery mailbox as the target mailbox. A discovery mailbox is a special type of mailbox that provides the following functionality:

  • Easier and secure target mailbox selection   When you use the EAC to copy In-Place eDiscovery search results, only discovery mailboxes are made available as a repository in which to store search results. You don't need to sort through a potentially long list of mailboxes available in the organization. This also eliminates the possibility of a discovery manager accidentally selecting another user's mailbox or an unsecured mailbox in which to store potentially sensitive messages.

  • Large mailbox storage quota   The target mailbox should be able to store a large amount of message data that may be returned by an In-Place eDiscovery search. By default, discovery mailboxes have a mailbox storage quota of 50 gigabytes (GB). Although you can increase this quota, discovery mailboxes larger than 50 GB are not supported.

  • More secure by default   Like all mailbox types, a discovery mailbox has an associated Active Directory user account. However, this account is disabled by default. Only users explicitly authorized to access a discovery mailbox have access to it. Members of the Discovery Management role group are assigned Full Access permissions to the default discovery mailbox. Any additional discovery mailboxes you create don't have mailbox access permissions assigned to any user.

  • Email delivery disabled   Although visible in Exchange address lists, users can't send email to a discovery mailbox. Email delivery to discovery mailboxes is prohibited by using delivery restrictions. This preserves the integrity of search results copied to a discovery mailbox.

Exchange 2013 Setup creates one discovery mailbox with the display name Discovery Search Mailbox. You can use the Shell to create additional discovery mailboxes. By default, the discovery mailboxes you create won't have any mailbox access permissions assigned. You can assign Full Access permissions for a discovery manager to access messages copied to a discovery mailbox. For details, see Create a Discovery Mailbox.

In-Place eDiscovery also uses a system mailbox with the display name SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} to hold In-Place eDiscovery metadata. System mailboxes aren't visible in the EAC or in Exchange address lists. In on-premises organizations, before removing a mailbox database where the In-Place eDiscovery system mailbox is located, you must move the mailbox to another mailbox database. If the mailbox is removed or corrupted, your discovery managers are unable to perform eDiscovery searches until you re-create the mailbox. For details, see Re-Create the Discovery System Mailbox.

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Users who have been added to the Discovery Management role group can perform In-Place eDiscovery searches. You can perform a search using the web-based interface in the EAC. This makes it easier for non-technical users such as records managers, compliance officers, or legal and HR professionals to use In-Place eDiscovery. You can also use the Shell to perform a search. For more information, see Create an In-Place eDiscovery Search

In on-premises organizations, you can use In-Place eDiscovery to search mailboxes located on Exchange 2013 Mailbox servers. To search mailboxes located on Exchange 2010 Mailbox servers, use Multi-Mailbox Search on an Exchange 2010 server.
In a hybrid deployment, which is an environment where some mailboxes exist on your on-premises Mailbox servers and some mailboxes exist in a cloud-based organization, you can perform In-Place eDiscovery searches of your cloud-based mailboxes using the EAC in your on-premises organization. If you intend to copy messages to a discovery mailbox, you must select an on-premises discovery mailbox. Messages from cloud-based mailboxes that are returned in search results are copied to the specified on-premises discovery mailbox. To learn more about hybrid deployments, see Exchange Server 2013 Hybrid Deployments.

The In-Place eDiscovery & Hold wizard in the EAC allows you to create an In-Place eDiscovery search and also use In-Place Hold to place search results on hold. When you create an In-Place eDiscovery search, a search object is created in the In-Place eDiscovery system mailbox. This object can be manipulated to start, stop, modify, and remove the search. After you create the search, you can choose to get an estimate of search results, which includes keyword statistics that help you determine query effectiveness. You can also do a live preview of items returned in the search, allowing you to view message content, the number of messages returned from each source mailbox and the total number of messages. You can use this information to further fine-tune your query if required.

When satisfied with the search results, you can copy them to a discovery mailbox. You can also use the EAC or Outlook to export a discovery mailbox or some of its content to a PST file.

When creating an In-Place eDiscovery search, you must specify the following parameters:

  • Name   The search name is used to identify the search. When you copy search results to a discovery mailbox, a folder is created in the discovery mailbox using the search name and the timestamp to uniquely identify search results in a discovery mailbox.

  • Mailboxes   You can choose to search all mailboxes in your Exchange 2013 organization or specify the mailboxes to search. If you also want to use the same search to place items on hold, you must specify the mailboxes. You can specify a distribution group to include mailbox users who are members of that group. Membership of the group is calculated once when creating the search and subsequent changes to group membership are not automatically reflected in the search. A user's primary and archive mailboxes are included in the search.

  • Search query   You can either include all mailbox content from the specified mailboxes or use a search query to return items that are more relevant to the case or investigation. You can specify the following parameters in a search query:

    • Keywords   You can specify keywords and phrases to search message content. You can also use the logical operators AND, OR, and NOT. Additionally, Exchange 2013 also supports the NEAR operator, allowing you to search for a word or phrase that's in proximity to another word or phrase.

      To search for an exact match of a multiple word phrase, you must enclose the phrase in quotation marks. For example, searching for the phrase “plan and competition” returns messages that contain an exact match of the phrase, whereas specifying plan AND competition returns messages that contain the words plan and competition anywhere in the message.

      Exchange 2013 also supports the Keyword Query Language (KQL) syntax for In-Place eDiscovery searches.

      In-Place eDiscovery does not support regular expressions.

      You must capitalize logical operators such as AND and OR for them to be treated as operators instead of keywords. We recommend that you use explicit parenthesis for any query that mixes multiple logical operators to avoid mistakes or misinterpretations. For example, if you want to search for messages that contain either WordA or WordB AND either WordC or WordD, you must use (WordA OR WordB) AND (WordC OR WordD).

    • Start and End dates   By default, In-Place eDiscovery doesn't limit searches by a date range. To search messages sent during a specific date range, you can narrow the search by specifying the start and end dates. If you don't specify an end date, the search will return the latest results every time you restart it.

    • Senders and recipients   To narrow down the search, you can specify the senders or recipients of messages. You can use email addresses, display names, or the name of a domain to search for items sent to or from everyone in the domain. For example, to find email sent by or sent to anyone at Contoso, Ltd, specify @contoso.com in the From or the To/cc field in the EAC. You can also specify @contoso.com in the Senders or Recipients parameters in the Shell.

    • Message types   By default, all message types are searched. You can restrict the search by selecting specific message types such as email, contacts, documents, journal, meetings, notes and Lync content.

The following screenshot shows an example of a search query in the EAC.

Configure eDiscovery Search Query

When using In-Place eDiscovery, also consider the following:

  • Attachments   In-Place eDiscovery searches attachments supported by Exchange Search. For details, see File Formats Indexed By Exchange Search. In on-premises deployments, you can add support for additional file types by installing search filters (also known as an iFilter) for the file type on Mailbox servers.

  • Unsearchable items   Unsearchable items are mailbox items that can't be indexed by Exchange Search. Reasons they can't be indexed include the lack of an installed search filter for an attached file, a filter error, and encrypted messages. For a successful eDiscovery search, your organization may be required to include such items for review. When copying search results to a discovery mailbox or exporting them to a PST file, you can include unsearchable items. For more information, see Unsearchable Items in Exchange eDiscovery.

  • Encrypted items   Because messages encrypted using S/MIME aren't indexed by Exchange Search, In-Place eDiscovery doesn't search these messages. If you select the option to include unsearchable items in search results, these S/MIME encrypted messages are copied to the discovery mailbox.

  • IRM-protected items   Messages protected using Information Rights Management (IRM) are indexed by Exchange Search and therefore included in the search results if they match query parameters. Messages must be protected by using an Active Directory Rights Management Services (AD RMS) cluster in the same Active Directory forest as the Mailbox server. For more information, see Information Rights Management.

    When Exchange Search fails to index an IRM-protected message, either due to a decryption failure or because IRM is disabled, the protected message isn't added to the list of failed items. If you select the option to include unsearchable items in search results, the results may not include IRM-protected messages that could not be decrypted.
    To include IRM-protected messages in a search, you can create another search to include messages with .rpmsg attachments. You can use the query string attachment:rpmsg to search all IRM-protected messages in the specified mailboxes, whether successfully indexed or not. This may result in some duplication of search results in scenarios where one search returns messages that match the search criteria, including IRM-protected messages that have been indexed successfully. The search doesn't return IRM-protected messages that couldn't be indexed.
    Performing a second search for all IRM-protected messages also includes the IRM-protected messages that were successfully indexed and returned in the first search. Additionally, the IRM-protected messages returned by the second search may not match the search criteria such as keywords used for the first search.
  • De-duplication   When copying search results to a discovery mailbox, you can enable de-duplication of search results to copy only one instance of a unique message to the discovery mailbox. De-duplication has the following benefits:

    • Lower storage requirement and smaller discovery mailbox size due to reduced number of messages copied.

    • Reduced workload for discovery managers, legal counsel, or others involved in reviewing search results.

    • Reduced cost of eDiscovery, depending on the number of duplicate items excluded from search results.

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After an In-Place eDiscovery search is completed, you can view search result estimates in the Details pane in the EAC. The estimate includes number of items returned and total size of those items. You can also view keyword statistics, which returns details about number of items returned for each keyword used in the search query. This information is helpful in determining query effectiveness. If the query is too broad, it may return a much bigger data set, which could require more resources to review and raise eDiscovery costs. If the query is too narrow, it may significantly reduce the number of records returned or return no records at all. You can use the estimates and keyword statistics to fine-tune the query to meet your requirements.

In Exchange 2013, keyword statistics also include statistics for non-keyword properties such as dates, message types, and senders/recipients specified in a search query.

You can also preview the search results to further ensure that messages returned contain the content you're searching for and further fine-tune the query if required. eDiscovery Search Preview displays the number of messages returned from each mailbox searched and the total number of messages returned by the search. The preview is generated quickly without requiring you to copy messages to a discovery mailbox.

After you're satisfied with the quantity and quality of search results, you can copy them to a discovery mailbox. When copying messages, you have the following options:

  • Include unsearchable items   For details about the types of items that are considered unsearchable, see the eDiscovery search considerations in the previous section.

  • Enable de-duplication   De-duplication reduces the dataset by only including a single instance of a unique record if multiple instances are found in one or more mailboxes searched.

  • Enable full logging   By default, only basic logging is enabled when copying items. You can select full logging to include information about all records returned by the search.

  • Send me mail when the copy is completed   An In-Place eDiscovery search can potentially return a large number of records. Copying the messages returned to a discovery mailbox can take a long time. Use this option to get an email notification when the copying process is completed. For easier access using Outlook Web App, the notification includes a link to the location in a discovery mailbox where the messages are copied.

For more information, see Copy eDiscovery Search Results to a Discovery Mailbox.

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After search results are copied to a discovery mailbox, you can export the search results to a PST file.

Export eDiscovery Search Results to a PST File

After search results are exported to a PST file, you or other users can open them in Outlook to review or print messages returned in the search results. For more information, see Export eDiscovery Search Results to a PST File.

Because In-Place eDiscovery performs searches on live data, it’s possible that two searches of the same content sources and using the same search query can return different results. Estimated search results can also be different from the actual search results that are copied to a discovery mailbox. This can happen even when rerunning the same search within a short amount of time. There are several factors that can affect the consistency of search results:

  • The continual indexing of incoming email because Exchange Search continuously crawls and indexes your organization’s mailbox databases and transport pipeline.

  • Deletion of email by users or automated processes.

  • Bulk importing large amounts of email, which takes time to index.

If you do experience dissimilar results for the same search, consider placing mailboxes on hold to preserve content, running searches during off-peak hours, and allowing time for indexing after importing large amounts of email.

There are two types of logging available for In-Place eDiscovery searches:

  • Basic logging   Basic logging is enabled by default for all In-Place eDiscovery searches. It includes information about the search and who performed it. Information captured about basic logging appears in the body of the email message sent to the mailbox where the search results are stored. The message is located in the folder created to store search results.

  • Full logging   Full logging includes information about all messages returned by the search. This information is provided in a comma-separated value (.csv) file attached to the email message that contains the basic logging information. The name of the search is used for the .csv file name. This information may be required for compliance or record-keeping purposes. To enable full logging, you must select the Enable full logging option when copying search results to a discovery mailbox in the EAC. If you're using the Shell, specify the full logging option using the LogLevel parameter.

When using the Shell to create or modify an In-Place eDiscovery search, you can also disable logging.

Besides the search log included when copying search results to a discovery mailbox, Exchange also logs cmdlets used by the EAC or the Shell to create, modify or remove In-Place eDiscovery searches. This information is logged in the admin audit log entries. For details, see Administrator Audit Logging.

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As part of eDiscovery requests, you may be required to preserve mailbox content until a lawsuit or investigation is disposed. Messages deleted or altered by the mailbox user or any processes must also be preserved. In Exchange 2013, this is accomplished by using In-Place Hold. For details, see In-Place Hold.

In Exchange 2013, you can use the new In-Place eDiscovery & Hold wizard to search items and preserve them for as long as they're required for eDiscovery or to meet other business requirements. When using the same search for both In-Place eDiscovery and In-Place Hold, be aware of the following:

  • You can't use the option to search all mailboxes. You must select the mailboxes or distribution groups.

  • You can't remove an In-Place eDiscovery search if the search is also used for In-Place Hold. You must first disable the In-Place Hold option in a search and then remove the search.

When an employee leaves an organization, it's a common practice to disable or remove the mailbox. After you disable a mailbox, it is disconnected from the user account but remains in the mailbox for a certain period, 30 days by default. The Managed Folder Assistant does not process disconnected mailboxes and any retention policies are not applied during this period. You can't search content of a disconnected mailbox. Upon reaching the deleted mailbox retention period configured for the mailbox database, the mailbox is purged from the mailbox database.

In Exchange Online, In-Place eDiscovery can search content in inactive mailboxes. Inactive mailboxes are mailboxes that are placed on In-Place Hold or litigation hold and then removed. Inactive mailboxes are preserved as long as they’re placed on hold. When an inactive mailbox is removed from In-Place Hold or when litigation hold is disabled, it is permanently deleted. For details, see Manage Inactive Mailboxes in Exchange Online.

In on-premises deployments, if your organization requires that retention settings be applied to messages of employees who are no longer in the organization or if you may need to retain an ex-employee's mailbox for an ongoing or future eDiscovery search, do not disable or remove the mailbox. You can take the following steps to ensure the mailbox can't be accessed and no new messages are delivered to it.

  1. Disable the Active Directory user account using Active Directory Users & Computers or other Active Directory or account provisioning tools or scripts. This prevents mailbox logon using the associated user account.

    Users with Full Access mailbox permission will still be able to access the mailbox. To prevent access by others, you must remove their Full Access permission from the mailbox. For information about how to remove Full Access mailbox permissions on a mailbox, see Manage Permissions for Recipients.
  2. Set the message size limit for messages that can be sent from or received by the mailbox user to a very low value, 1 KB for example. This prevents delivery of new mail to and from the mailbox. For details, see Configure Message Size Limits for a Mailbox.

  3. Configure delivery restrictions for the mailbox so nobody can send messages to it. For details, see Configure Message Delivery Restrictions for a Mailbox.

You must take the above steps along with any other account management processes required by your organization, but without disabling or removing the mailbox or removing the associated user account.

When planning to implement mailbox retention for messaging retention management (MRM) or In-Place eDiscovery, you must take employee turnover into consideration. Long-term retention of ex-employee mailboxes will require additional storage on Mailbox servers and also result in an increase in Active Directory database because it requires that the associated user account be retained for the same duration. Additionally, it may also require changes to your organization's account provisioning and management processes.

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In Exchange 2013 and Exchange Online, the resources In-Place eDiscovery can consume are controlled using throttling policies.

The default throttling policy contains the following throttling parameters.


Parameter Description Default value


Maximum number of In-Place eDiscovery searches a user can perform concurrently.



The maximum number of mailboxes that can be searched in a single In-Place eDiscovery search.



The maximum number of keywords that can be specified in a single In-Place eDiscovery search.



The maximum number of items displayed on a single page when previewing In-Place eDiscovery search results.



The number of minutes that an In-Place eDiscovery search will run before it times out.

10 minutes

1   If you have an Office 365 organization and you initiate an eDiscovery search from the eDiscovery Center in SharePoint Online, you can search a maximum of 1,500 mailboxes in a single search.

In Exchange Server 2013, you can change the default values for these parameters to suit your requirements or create additional throttling policies and assign them to users with delegated Discovery Management permission. In Exchange Online, the default values for these throttling parameters can’t be changed.

The following table contains links to topics that will help you learn about and manage In-Place eDiscovery.


Topic Description

Add a User to the Discovery Management Role Group

Learn how to give a user access to use In-Place eDiscovery in the EAC to search Exchange mailboxes. Adding a user to the Discovery Management role group also allows the person to use the eDiscovery Center in SharePoint 2013 and SharePoint Online to search Exchange mailboxes.

Create a Discovery Mailbox

Learn how to use the Shell to create a discovery mailbox and assign access permissions.

Create an In-Place eDiscovery Search

Learn how to create an In-Place eDiscovery search, and how to estimate and preview eDiscovery search results.

Start or Stop an In-Place eDiscovery Search

Learn how to start, stop, and restart eDiscovery searches.

Modify an In-Place eDiscovery Search

Learn how to modify an existing eDiscovery search.

Copy eDiscovery Search Results to a Discovery Mailbox

Learn how to copy the results of an eDiscovery search to a discovery mailbox.

Export eDiscovery Search Results to a PST File

Learn how to export the results of an eDiscovery search to a PST file.

Remove an In-Place eDiscovery Search

Learn how to delete an eDiscovery search.

Search and Delete Messages

Learn how to use In-Place eDiscovery to search for and then delete email messages.

Re-Create the Discovery System Mailbox

Learn how to recreate the discovery system mailbox. This task is applicable only to Exchange 2013 organizations.

Using OAuth Authentication to Support eDiscovery in an Exchange Hybrid Deployment

Learn about the eDiscovery scenarios in an Exchange hybrid deployment that require you to configure OAuth authentication.

Configure Exchange for SharePoint eDiscovery Center

Learn how to configure Exchange 2013 so that you can use the eDiscovery Center in SharePoint 2013 to search Exchange mailboxes.

Unsearchable Items in Exchange eDiscovery

Learn about mailbox items that can’t be indexed by Exchange Search and are returned in eDiscovery search results as unsearchable items.

For more information about eDiscovery in Office 365, Exchange 2013, SharePoint 2013, and Lync 2013, see the eDiscovery FAQ.

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