Pull up the customer account in converge.mp and click the 

1. Click the + button under "Add Mailbox / Distribution List"
2. Change the selector that says "MAPI" to "DL"
3. Enter the bit before the @ symbol in the "Username" field
4. Select the domain to go after the @ symbol under the "Select Domain" selector.
5. Click "Create"
6. Once created, scroll down to see the Distribution list.
7. Click the email address for the Distribution list.
8. Add the recipient addresses.

Sometimes, due to server update times, there can be the odd instance where you get an error. If this happens, send the details to [email protected] and we will fix it for you.