../sendmail/cf/README
confCF_VERSION $Z macro If defined, this is appended to the
configuration version name.egrep "Configuration version" sendmail.cf
# Configuration version number
DZ8.14.2
egrep "Configuration version" submit.cf
# Configuration version number
DZ8.14.2/Submit
Соотвественно заголовок письма, отправленного непосредственно с сервера:
Received: from mail.xxx.ru (localhost [127.0.0.1])
by mail.xxx.ru (8.14.2/8.14.2) with ESMTP id m1MCluJd012405
for <xxx@xxx.ru>; Fri, 22 Feb 2008 17:47:56 +0500
Received: (from root@localhost)
by mail.xxx.ru (8.14.2/8.14.2/Submit) id m1MCluX3012404
for xxx; Fri, 22 Feb 2008 17:47:56 +0500