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Enable Explicit Sign-in in Outlook Web App

Exchange 2010
 

Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2012-07-23

You can use either the EMC or the Shell to grant access to a user to open another user's mailbox or a resource mailbox.

Explicit sign-in enables a user to open another user's mailbox or a resource mailbox by using Outlook Web App. To use this feature, the user must have Full Access permission to the mailbox to be opened. Full Access permission doesn't give the user Send As permission or Delegate access to the mailbox.

When explicit sign-in is used to open a resource mailbox in Outlook Web App, there will be a set of options available to manage that resource.

Looking for other management tasks related to Outlook Web App URLs? Check out Managing Outlook Web App URLs.

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "Permissions and delegation" entry in the Mailbox Permissions topic.

  1. In the console tree, navigate to Recipient Configuration > Mailbox.
  2. Right-click on the mailbox you want to grant access to, and then select Manage Full Access Permission.
  3. Click Add, and then select the user or group you want to have Full Access permission to the mailbox. You can select multiple users or groups. Click OK after you've made your selection.
  4. Click Manage to run the wizard.
  5. Click Finish to close the wizard and return to the EMC.

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "Permissions and delegation" entry in the Mailbox Permissions topic.

This example grants Full Access permission to the mailbox named TestA to the user named TestB.

Add-MailboxPermission -identity TestA -User TestB -AccessRights FullAccess

You must have Full Access permission for the mailbox that you want to open to perform this procedure.

  1. Open a Web browser.
  2. Enter the URL for your organization's Outlook Web App, and then add the SMTP address of the mailbox that you want to open to the end of the URL. For example, to open the mailbox conferenceroom@contoso.com, you would enter <Outlook Web App URL>/conferenceroom@contoso.com. A mailbox can have more than one SMTP address. You can use any of them to open the mailbox.
  3. Sign in by using your user name and password.

You must have Full Access permission for the mailbox that you want to open to perform this procedure.

  1. Sign in to Outlook Web App.
  2. At the top of the Outlook Web App window, click the drop-down arrow next to your mailbox name, and then click the Open Other Mailbox window.
  3. Enter the name of the mailbox that you want to open, and then click Open.
noteNote:
To open another user's mailbox or a resource mailbox, your mailbox and the mailbox that you're opening must be Exchange 2010 mailboxes.

For more information about syntax and parameters, see Add-MailboxPermission.

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