My client want this. Let's say - it just some company standards. if he insists - I would recommend them to use another MTA, for example exim
P.S. I have understand that it not possible in postfix. Thanks for the help Среда, 24 июля 2013, 18:02 UTC от Viktor Dukhovni <postfix-us...@dukhovni.org>: >On Wed, Jul 24, 2013 at 09:00:24PM +0400, ??????? ????????? wrote: > >> I just read http://www.postfix.org/postconf.5.html#smtpd_banner >> and there no information about that. Thanks to point me in the >> right way. >> >> P.S. >> maybe it would be possible by using 3rd party software (some policy server) ? > >This looks like a waste of time. Why do you care what your banner is? >Anything beyond: > >220 mail.example.com ESMTP > >is generally just a waste of bits. > >-- >Viktor. -- Алексей Доморадов