Comment 6 for bug 1595096

@ChristianEhrhardt

In my case, this is a brand new, fresh install of 16.04LTS

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS"

Command was :

postmulti -I postfix-example -G postfix -e create config_directory=/etc/postfix-example queue_directory=/var/spool/postfix-example data_directory=/var/lib/postfix-example

Package: postfix
Status: install ok installed
Priority: extra
Section: mail
Installed-Size: 3610
Maintainer: LaMont Jones <email address hidden>
Architecture: amd64
Version: 3.1.0-3
Replaces: mail-transport-agent
Provides: default-mta, mail-transport-agent
Depends: libc6 (>= 2.14), libdb5.3, libicu55 (>= 55.1-1~), libsasl2-2, libsqlite3-0 (>= 3.5.9), libssl1.0.0 (>= 1.0.0), debconf (>= 0.5) | debconf-2.0, netbase, adduser (>= 3.48), dpkg (>= 1.8.3), lsb-base (>= 3.0-6), ssl-cert, cpio
Recommends: python3
Suggests: procmail, postfix-mysql, postfix-pgsql, postfix-ldap, postfix-pcre, sasl2-bin, libsasl2-modules, dovecot-common, resolvconf, postfix-cdb, mail-reader, ufw, postfix-doc
Conflicts: libnss-db (<< 2.2-3), mail-transport-agent, smail
Conffiles:
 /etc/init.d/postfix a749ca975db772edde8499272dc78d12
 /etc/insserv.conf.d/postfix 7fe2d086ff4822fc9fe13adab1090dce
 /etc/network/if-down.d/postfix 52275dc23864f3bfca412c7558e28fe6
 /etc/network/if-up.d/postfix fccc53fc4eeeab46941ebcc95a71e766
 /etc/postfix/post-install ed83d3b1b6cbd8e30067e7c9a79fa50f
 /etc/postfix/postfix-files 2a3bc26e39035de74291c3a900a9797f
 /etc/postfix/postfix-script f684687fc7c48dc8192dafb85d32794c
 /etc/ppp/ip-down.d/postfix 52275dc23864f3bfca412c7558e28fe6
 /etc/ppp/ip-up.d/postfix fccc53fc4eeeab46941ebcc95a71e766
 /etc/resolvconf/update-libc.d/postfix a0548352443659052ed16d4ae7314506
 /etc/rsyslog.d/postfix.conf d8a09827fff2a22311e4dd4a83e95c83
 /etc/ufw/applications.d/postfix 5c7e746dc9255e750b8f50460de11a32
Description: High-performance mail transport agent
 Postfix is Wietse Venema's mail transport agent that started life as an
 alternative to the widely-used Sendmail program. Postfix attempts to
 be fast, easy to administer, and secure, while at the same time being
 sendmail compatible enough to not upset existing users. Thus, the outside
 has a sendmail-ish flavor, but the inside is completely different.
Homepage: http://www.postfix.org