install mailcatcher with systemd init script on ubuntu 18.04 and catch all sendmail

install_mailcatcher.sh

#!/bin/bash

echo "-- installing mailcatcher -- "

apt-get install ruby ruby-dev ruby-all-dev sqlite3 libsqlite3-dev -y

gem install mailcatcher

echo '[Unit]
Description = MailCatcher
After=network.target
After=systemd-user-sessions.service

[Service]
Type=simple
Restart=on-failure
User=vagrant
ExecStart=/usr/local/bin/mailcatcher --foreground --smtp-ip 0.0.0.0 --ip 0.0.0.0

[Install]
WantedBy=multi-user.target
' >> /etc/systemd/system/mailcatcher.service

chmod 744 /etc/systemd/system/mailcatcher.service

systemctl enable mailcatcher
service mailcatcher start
service mailcatcher status

# use mailcatcher for all php mail sent with sendmail
echo "sendmail_path = /usr/bin/env $(which catchmail) -f [email protected]" | sudo tee /etc/php/mods-available/mailcatcher.ini

sudo phpenmod mailcatcher

sudo service php7.2-fpm restart