msmtp-mta binary package in Ubuntu Oracular amd64

 msmtp is an SMTP client that can be used to send mails from Mutt and probably
 other MUAs (mail user agents). It forwards mails to an SMTP server (for
 example at a free mail provider), which takes care of the final delivery.
 Using profiles, it can be easily configured to use different SMTP servers
 with different configurations, which makes it ideal for mobile clients.
 .
 This package is compiled with SASL and TLS/SSL support.
 .
 This package provides the regular MTA program.

Source package