Customers have asked if they can get the "Delivered-To" header in the case that their mail is sent onwards. But we do not use the regular .forward or "delivery" style, but rather query LDAP for "mailForwardingAddress" to send mail on.
As in: virtual_mailbox_maps = ldap:/etc/postfix/ldap-accounts.cf virtual_mailbox_domains = ldap:/etc/postfix/ldap-domains.cf virtual_alias_maps = ldap:/etc/postfix/ldap-forwardonly.cf, ldap:/etc/postfix/ldap-forwards.cf So I think we have the problem that we are not actually delivering anything but rather "relay"ing it onwards, so the option " prepend_delivered_header" does not apply here? I suppose there is probably nothing I can do about it? Sincerely, Lund