Скачать или смотреть How to Install Postal Mail Server on Ubuntu 16.04 Xenial Xerus

A fully featured open source mail delivery platform for incoming & outgoing e-mail |
Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready for you to run on your own servers. Postal was developed by aTech Media to serve its own mail processing requirements and we have since decided that it should be released as an open source project for the community.
Github:- https://github.com/atech/postal
Installation:- https://github.com/atech/postal/wiki/...
https://github.com/atech/postal/wiki/...

curl -sL https://deb.nodesource.com/setup_7.x | sudo -E bash -
sudo apt-add-repository ppa:brightbox/ruby-ng -y
sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xF1656F24C74CD1D8
echo 'deb http://www.rabbitmq.com/debian/ testing main' | sudo tee /etc/apt/sources.list.d/rabbitmq.list
wget O https://www.rabbitmq.com/rabbitmq-rel... | sudo apt-key add -
sudo apt-get update
sudo apt-get install python-software-properties software-properties-common git nginx build-essential libmysqlclient-dev ruby2.3 ruby2.3-dev erlang erlang-nox rabbitmq-server nodejs mariadb-server -y
wget https://packages.erlang-solutions.com...
sudo dpkg -i erlang-solutions_1.0_all.deb

mysql -u root -p
CREATE DATABASE postal CHARSET utf8mb4 COLLATE utf8mb4_unicode_ci;
GRANT ALL ON `postal`.* TO `postal`@`127.0.0.1` IDENTIFIED BY "password";
GRANT ALL ON `postal-%`.* TO `postal`@`127.0.0.1` IDENTIFIED BY "password";
FLUSH PRIVILEGES;

rabbitmqctl add_vhost /postal
rabbitmqctl add_user postal password
rabbitmqctl set_permissions -p /postal postal ".*" ".*" ".*"
useradd -r -m -d /opt/postal -s /bin/bash postal
sudo gem install procodile bundler
sudo -i -u postal git clone https://github.com/atech/postal /opt/postal/app
ln -s /opt/postal/app/bin/postal /usr/bin/postal
su - postal
postal bundle /opt/postal/app/vendor/bundle
postal initialize-config
nano config/postal.yml
postal initialize
postal make-user
postal run
postal start
postal status

cp /opt/postal/app/resource/nginx.cfg /etc/nginx/sites-available/default
sudo mkdir /etc/nginx/ssl/
cd /etc/nginx/ssl/
openssl req -x509 -nodes -newkey rsa:4096 -keyout postal.key -out postal.crt
service nginx reload