The Domain aliasing feature in CASG allows the administrator to add multiple domains as aliases for the main domain. After adding a domain alias, the MX records should be configured to activate the filtering process for this domain alias. Once this is done, mails sent to users at alias domain will be filtered and delivered to users at main domain. For example, if you add testdomain.org as an alias domain for the main domain testdomain.com and mail sent to firstname.lastname@example.org will be filtered and delivered to email@example.com. The 'To:' headers in the email will still display the original recipient as firstname.lastname@example.org.
To add domain aliases
Click 'Domain Aliases' from the 'Incoming' drop-down menu in the menu bar or the icon in the 'Incoming' configuration area.
The 'Domain Aliases' interface of the selected domain will open:
Click the 'Add' button to add a domain alias for the selected domain.
The 'Add domain alias' dialog box will open.
Enter the domain alias name in the 'Alias' field.
Click the 'Save' button.
The domain will be added to the main domain as alias and will be listed in the interface.
To delete a domain alias, select the domain alias from the list and click the 'Delete' button.
The selected domain alias will be deleted from the list.