Default SMTP Route

You can also define a default SMTP route with the special keyword ALL . If a domain does not match a previous mapping in the SMTP Routes list, it defaults to being redirected to the MX host specified by the ALL entry.

When you print the SMTP Routes entries, the default SMTP route is listed as ALL: . You cannot delete the default SMTP route; you may only clear any values entered for it.

Configure the default SMTP route using the Management Appliance > Network > SMTP Routes page or the smtproutes command.