Managing Domain Allow Lists
Spam checking is not performed on domains or email addresses that are added to the allow list, they are automatically forwarded to the recipient. Follow the steps below to manage domain and email allow list entries.
Impersonate your customer. See Impersonating a Customer.
The customer page displays, showing the Domain Management panel at the top of the screen. Click the edit
in the Options column for the domain you want to edit and scroll down to the Domain Allow/Block List Management panel.
To add an allowed domain, click the Allowed Domains tab and click Add....
Enter the Domain in the form of example.com.
Check Include Subdomains for subdomains to also be allowed.
Enter any optional comments in the Comments field.
To add an allowed email address, click the Allowed E-mail Addresses tab and click Add....
Enter the Sender Email: in the form of user@example.com.
Enter any optional comments in the Comments field.
Click Save to save the entry or Cancel to discard.
To edit an allow list entry, click the edit icon in the Options column.
To delete an allow list entry, click the delete 
icon in the Options column.