Postfix/main.cf/virtual mailbox domains


 * parameter: virtual_mailbox_domains
 * default: $virtual_mailbox_maps (this is backwards-compatible with Postfix 1.1)
 * versions: 2.0 and later

About
Postfix is final destination for the specified list of domains; mail is delivered via the $virtual_transport mail delivery transport. By default this is the Postfix virtual(8) delivery agent. The SMTP server validates recipient addresses with $virtual_mailbox_maps and rejects mail for non-existent recipients. See also the virtual mailbox domain class in the ADDRESS_CLASS_README file.

This parameter expects the same syntax as the mydestination configuration parameter.