Note: sending as a Distribution List doesn't work in Outlook 2016.

Once the permissions to send as a distribution list have been granted to your mailbox, you will need to set up the Send As ability for the user in Outlook 2011.

  1. In Outlook 2011, go to Tools > Accounts, click on the + button at the bottom of the accounts list, and select E-mail to add an email account:
    Add new account
  2. Enter account information. When you have filled in all the information, click Add Account:
    • Enter the email address of the distribution list and the password for your own mailbox
    • For the User name, use your mailbox address
    • To find the Incoming server and Outgoing server settings, navigate to HostPilot > Get started > Advanced settings:
      Fill in account information
  3. In the newly created account, click on More Options under Outgoing server:
    • In the Authentication field, select User Name and Password
    • Enter your email address and password. Click OK:
      More options
  4. Click Advanced, then switch to the Folders tab. For the Store sent messages in this folder option, select Sent Items (On My Computer):
    Save Sent Items

Now that you have set up the delegate permissions, you will be able to select the primary mailbox or the distribution list as the sender address when composing a message. To do this, create a new message, click on the arrow next to the From field, and select the desired sender address from the list:

Choose From address