Exchange Server Grant the Send As Permission

How to Grant the Send As Permission for a Mailbox

There are two ways to give other users the ability to “send as” another user, mailbox, or public folder address when you use Microsoft Exchange server.

Using the Delegates feature on the Tools, Options menu. This is configurable in Microsoft Outlook by any user and adds “on behalf of” to the From field.

The administrator can give the account “Send As” permissions. Once Send as permission has been granted, users will type the mailbox name or smtp address in the From field when composing a message to send it as the other user or public folder.

Their own email address will not be exposed on the message header, however all sent messages will be stored in their own sent folder.

Note:

In Microsoft Office Outlook, users will receive the following errors when attempting to send a message on behalf of a mailbox that is hidden from address lists:

Online mode   When users press Send, they will receive the following error: “You do not have permission to send on behalf of the specified user.”

Cached Exchange Mode   Outlook initially sends the message, but users will receive a non-delivery report (NDR) containing the following message: “You are not allowed to send this message because you are trying to send on behalf of another user without permission to do so. Please verify that you are sending on behalf of the correct sender, or ask your system administrator to help you get the required permission”

Grant the Send As permission  for “Exchange 2007 RTM” slightly different than “Exchange 2007 SP1”

You have to use Active Directory Users and Computers to grant a user the Send As permission for another user’s mailbox  in Exchange 2007 RTM,  however you have to use the Exchange Management Console to grant a user the Send As permission in “Exchange 2007 SP1”

Procedure to Configure Mailboxes for Exchange 2007 RTM

  1. Open Active Directory Users and Computers on the Exchange Server.
  2. Go to the View menu and choose Advanced.
  3. Right click on the mailbox you need to configure Send As on. Choose Properties.
  4. Click the Security tab. (This is visible only if you selected Advanced in Step 2).
  5. Click Add and select the users name that you want to give Send As permission to.
  6. Find Send As in the Permissions list and check it.
  7. Click Apply and close the dialog.

Configure Public Folders

  1. Open Exchange System Manager.
  2. Browse to the Public Folder tree.
  3. Right click on the public folder and choose Properties.
  4. Click on the Permissions tab.
  5. Click on Directory Rights button.
  6. Click Add and select the users name that you want to give Send As permission to.
  7. Find Send As in the Permissions list and check it.
  8. Click Apply and close the dialog.

To use the Exchange Management Shell to grant a user the Send As permission for another user’s mailbox Run the following command.

Add-ADPermission “Mailbox” -User “Domain\User” -Extendedrights “Send As”

Configure Outlook

Use outlook to send as email.

Outlook default setting dose not show “From” field,

click Options Tab and then “Show From”

Select the user/distribution group when you send as, then your email address will not expose to the recipients

don’t worry if  you still get the bounce back  with message below,  because the it took a wile  to replicate and allow permissions

“You are not allowed to send this message because you are trying to send on behalf of another sender without permission to do so. Please verify that you are sending on behalf of the correct sender, or ask your system administrator to help you get the required permission.”

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