Installing postfix mail server on ubuntu
apt install postfix
If you want to sent out email from this server, select Internet Site on Postfix Configuration screen.
To see postfix configuration, run
postconf -d
To see value of specific item, for example myhostname, run
postconf -d myhostname
Testing Mail
To test, sent a test email with command
echo "Test email" | mail -s "Test email" [email protected]
