How to grant Full Access and Send on Behalf permissions in Exchange 2013?

We have migrated from Exchange 2010 to Exchange 2013.

We have multiple shared mailboxes and we have always granted users Full Access and Send on Behalf permission so that if a shared mailbox receives an e-mail and a user replies it appears to come from Doe, John On Behalf Of Sales.

In ECP in Exchange 2013 there is only Full Access and Send As permissions in the online control panel. How do I grant Full Access and Send On Behalf?

Edit: I don't want "Send As". I want "Send on Behalf".

I do not want Send As. I do not want the e-mails to look as if they were sent by the shared mailbox. I want the Exchange 2010 behavior so that when an employee replies to an e-mail sent to a shared mailbox the recipient sees Doe, John On Behalf Of Sales.

Solution 1:

You can use Powershell to configure, Send on Behalf, Send as, Full Mailbox Access.

Below are examples.

• Send on Behalf

  This will grant Charles permissions to send on behalf of Gert.

  Set-Mailbox gert.mailbox -GrantSendOnBehalfTo charles.surname
  

• Send As

  This will grant Charles permissions to send as Gert.

  Add-ADPermission gert.mailbox -ExtendedRights Send-As -user charles.surname
  

• Full Mailbox Access

  This will grant Charles full access to Gert's mailbox.

  Add-MailboxPermission -Identity gert.mailbox -User charles.surname

Update: Microsoft Example

Here is a way from Microsoft: (Exchange 2016: Create a shared mailbox. Archived here.)

Use the Shell to create a shared mailbox

This example creates the shared mailbox Sales Department and grants Full Access and Send on Behalf permissions for the security group MarketingSG. Users who are members of the security group will be granted the permissions to the mailbox.

Note: This example assumes that you’ve already created the security group MarketingSG and that security group is mail-enabled. See Manage mail-enabled security groups.

New-Mailbox -Shared -Name "Sales Department" -DisplayName "Sales Department" -Alias Sales |
    Set-Mailbox -GrantSendOnBehalfTo MarketingSG |
    Add-MailboxPermission -User MarketingSG -AccessRights FullAccess -InheritanceType All