Description: mail server delivery agent stack provided by Ubuntu server team
 Ubuntu's mail stack provides fully operational delivery with
 safe defaults and additional options. Out of the box it supports IMAP,
 POP3 and SMTP services with SASL authentication and Maildir as default
 storage engine.

sudo dpkg-reconfigure postfix

sendmail_path = 'tee /tmp/mylocal.mail > /dev/null'