Zimbra

Download: https://www.zimbra.com/downloads/zimbra-collaboration-open-source

Instructions: https://www.howtoforge.com/tutorial/ubuntu-14-04-zimbra-server/

apt-get install libgmp10 libperl5.18 unzip pax sysstat sqlite3 dnsmasq wget libaio1
nano /etc/hostname

set

mail.host-name.localdomain

then

nano /etc/hosts

add

ip.add.res.ss mail.host-name.localdomain mail

then

nano /etc/dnsmasq.conf

then

server=192.168.1.101
domain=sendaljepit.local
mx-host=sendaljepit.local, mail.sendaljepit.local, 5
#repeat mx-host=mail.sendaljepit.local, mail.sendaljepit.local, 5
#why? listen-address=127.0.0.1

Also this guy explains the repeat lines: http://forums.zextras.com/zimbra-howto/485-setting-up-dnsmasq-instead-bind-bulletproof-internal-dns-resolution-splitdns.html

i also changed this line to my liking

address=/mail.domain.com/192.168.0.2

extract the release run ./install.sh

do not install zimbra-dnscache because we are using dnsmasq

configure admin password

6,4

Apply the config

Debian Client

https://pkg-exim4.alioth.debian.org/README/README.Debian.html#id280581

dpkg-reconfigure exim4-config