lst_ho...@kwsoft.de: > Zitat von Wietse Venema <wie...@porcupine.org>: > > lst_ho...@kwsoft.de: > >> Hello, > >> > >> we need to authenticate a SMTP client connection base on the CN of the > >> (trusted) client certificate. The client is not under our control > >> (O365 connector), so we will get no notification if the key > >> fingerprint will change. As far as i can see Postfix is only able to > >> use certificate fingerprints to allow relaying, not the CN string, no? > >> > >> Have i missed something or is this not considered a valid use case? > > > > CN-based access checks are not built into Postfix, but the CN is > > available in the policy delegation protocol's ccert_subject attribute, > > if the client certificate can be verified with PKI. > > > > There is a patch-in-progress (thread: TLS client certificates and > > auth external) that provides the option to permit relaying based > > on certificate info. > > > > Wietse > > Will this be available in the 3.5 experimental release or only later > down the road for 3.6?
In the current (3.5) development cycle, if this can be done safely. Wietse