To receive emails meant for the root user, you have to [[Forward_System_Emails|Forward System Emails]] after finishing this tutorial.<br>

{{Code|sudo apt-get -y postfix mailutils

sudo apt-get -y remove sendmail}}

'''NOTE:''' During install of postfix, a popup box may display. If it does, select '''''Internet''''' and then '''OK'''.

{{Code|sudo postconf -e 'relayhost<nowiki>=</nowiki>gmail-smtp-in.l.google.com'

sudo postconf -e 'smtp_sasl_auth_enable<nowiki>=</nowiki>yes'

sudo postconf -e 'smtp_sasl_security_options<nowiki>=</nowiki>'}}

{{Text|Text=gmail-smtp-in.l.google.com user@gmail.com:password}}

Obviously, you need to change ''user'' to your username and ''password'' to your gmail password. <br>

{{Code|sudo postmap hash:/etc/postfix/sasl_passwd}}

{{Code|sudo chown root:root /etc/postfix/sasl_passwd

sudo chmod 600 /etc/postfix/sasl_passwd}}

{{Code|sudo /etc/init.d/postfix restart}}

{{Code|echo "This is Content" <nowiki>|</nowiki> sudo mail -s "This is subject" user@gmail.com}}

{{Code|tail -f /var/log/mail.log}}