Wietse Venema: > David Touzeau: > > Dear > > > > We are facing an problem that we cannot resolve... > > Our main goal is to implement a load-balancer in front of Postfix (HaProxy). > > We have made a discuss with HaProxy founder in order to implement the > > XCLIENT protcol but this is difficult for him to implement such protocol. > > FYI nginx implements XCLIENT (and more). But it does not matter, > since postscreen has no proxy support.
If smtpd is sufficient for you, then nginx (and other XCLIENT capable proxies, see Victor's post) will do the job. Wietse