Demi Marie Obenour: > >> It seems that There are knobs that let you list *individual certs* for > >> allowing trusted relaying, but not *individual ca's*. > >> > >> Is there any way around this? > > > > Yes: handle that traffic with a dedicated smtpd instance that only > > trusts your internal root. > > > > Postfix check_ccert_access currently supports matches based on > > certificate fingerprint and public key fingerprint. The other > > available attributes, issuer name and subject name, are too soft > > for security decisions. > > Would it be possible to support trusting based on subject alt name? > I would like a machine with a certificate for a.example.com to send > mail from a.example.com domains.
What is the trust model here? Wietse