Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  perl perl-base perl-modules
Suggested packages:
  perl-doc libterm-readline-gnu-perl libterm-readline-perl-perl make libb-lint-perl libcpanplus-dist-build-perl libcpanplus-perl libfile-checktree-perl
  libobject-accessor-perl postfix-mysql postfix-pgsql postfix-ldap postfix-pcre sasl2-bin resolvconf postfix-cdb ufw postfix-doc
The following packages will be REMOVED:
  exim4 exim4-base exim4-config exim4-daemon-light
The following NEW packages will be installed:
  postfix
The following packages will be upgraded:
  perl perl-base perl-modules
3 upgraded, 1 newly installed, 4 to remove and 169 not upgraded.
Need to get 7,816 kB of archives.
After this operation, 260 kB disk space will be freed.
Do you want to continue? [Y/n] y
Get:1 http://mirror.yandex.ru/debian/ jessie/main postfix amd64 2.11.3-1+deb8u2 [1,374 kB]
Get:2 http://security.debian.org/ jessie/updates/main perl amd64 5.20.2-3+deb8u12 [2,658 kB]
Get:3 http://security.debian.org/ jessie/updates/main perl-base amd64 5.20.2-3+deb8u12 [1,231 kB]
Get:4 http://security.debian.org/ jessie/updates/main perl-modules all 5.20.2-3+deb8u12 [2,553 kB]
Fetched 7,816 kB in 0s (8,007 kB/s)
Reading changelogs... Done
Preconfiguring packages ...
(Reading database ... 49857 files and directories currently installed.)
Preparing to unpack .../perl_5.20.2-3+deb8u12_amd64.deb ...
Unpacking perl (5.20.2-3+deb8u12) over (5.20.2-3+deb8u6) ...
Preparing to unpack .../perl-base_5.20.2-3+deb8u12_amd64.deb ...
Unpacking perl-base (5.20.2-3+deb8u12) over (5.20.2-3+deb8u6) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up perl-base (5.20.2-3+deb8u12) ...
(Reading database ... 49857 files and directories currently installed.)
Preparing to unpack .../perl-modules_5.20.2-3+deb8u12_all.deb ...
Unpacking perl-modules (5.20.2-3+deb8u12) over (5.20.2-3+deb8u6) ...
(Reading database ... 49857 files and directories currently installed.)
Removing exim4 (4.84.2-2+deb8u1) ...
dpkg: exim4-daemon-light: dependency problems, but removing anyway as you requested:
 bsd-mailx depends on default-mta | mail-transport-agent; however:
  Package default-mta is not installed.
  Package exim4-daemon-light which provides default-mta is to be removed.
  Package mail-transport-agent is not installed.
  Package exim4-daemon-light which provides mail-transport-agent is to be removed.
 bsd-mailx depends on default-mta | mail-transport-agent; however:
  Package default-mta is not installed.
  Package exim4-daemon-light which provides default-mta is to be removed.
  Package mail-transport-agent is not installed.
  Package exim4-daemon-light which provides mail-transport-agent is to be removed.

Removing exim4-daemon-light (4.84.2-2+deb8u1) ...
dpkg: exim4-config: dependency problems, but removing anyway as you requested:
 exim4-base depends on exim4-config (>= 4.82) | exim4-config-2; however:
  Package exim4-config is to be removed.
  Package exim4-config-2 is not installed.
  Package exim4-config which provides exim4-config-2 is to be removed.
 exim4-base depends on exim4-config (>= 4.82) | exim4-config-2; however:
  Package exim4-config is to be removed.
  Package exim4-config-2 is not installed.
  Package exim4-config which provides exim4-config-2 is to be removed.

Removing exim4-config (4.84.2-2+deb8u1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Selecting previously unselected package postfix.
(Reading database ... 49793 files and directories currently installed.)
Preparing to unpack .../postfix_2.11.3-1+deb8u2_amd64.deb ...
Unpacking postfix (2.11.3-1+deb8u2) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for systemd (215-17+deb8u4) ...
(Reading database ... 49985 files and directories currently installed.)
Removing exim4-base (4.84.2-2+deb8u1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up perl-modules (5.20.2-3+deb8u12) ...
Setting up perl (5.20.2-3+deb8u12) ...
Setting up postfix (2.11.3-1+deb8u2) ...
Adding group `postfix' (GID 121) ...
Done.
Adding system user `postfix' (UID 113) ...
Adding new user `postfix' (UID 113) with group `postfix' ...
Not creating home directory `/var/spool/postfix'.
Creating /etc/postfix/dynamicmaps.cf
Adding tcp map entry to /etc/postfix/dynamicmaps.cf
Adding sqlite map entry to /etc/postfix/dynamicmaps.cf
Adding group `postdrop' (GID 122) ...
Done.

Postfix was not set up.  Start with
  cp /usr/share/postfix/main.cf.debian /etc/postfix/main.cf
.  If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed.  To view Postfix configuration
values, see postconf(1).

After modifying main.cf, be sure to run '/etc/init.d/postfix reload'.

Processing triggers for systemd (215-17+deb8u4) ...
Processing triggers for libc-bin (2.19-18+deb8u4) ...