On Fri, Mar 09, 2018 at 11:53:00AM +0000, André Rodier wrote: > I would like to know if there is any milter for postfix that would let > me query a CardDav server?
Well, don't. Milter is latency sensitive and it will break mail delivery if you don't manage to get it right. If you use the correct Sieve implementation you can ask it to run stuff for you: https://raw.githubusercontent.com/dovecot/pigeonhole/master/doc/rfc/spec-bosch-sieve-extprograms.txt Bastian -- The heart is not a logical organ. -- Dr. Janet Wallace, "The Deadly Years", stardate 3479.4