Package msmtp

SMTP client

https://marlam.de/msmtp/

It forwards messages to an SMTP server which does the delivery.
Features include:
  * Sendmail compatible interface (command line options and exit codes).
  * Authentication methods PLAIN,LOGIN,CRAM-MD5,DIGEST-MD5,GSSAPI,and NTLM
  * TLS/SSL both in SMTP-over-SSL mode and in STARTTLS mode.
  * Fast SMTP implementation using command pipe-lining.
  * Support for Internationalized Domain Names (IDN).
  * DSN (Delivery Status Notification) support.
  * RMQS (Remote Message Queue Starting) support (ETRN keyword).
  * IPv6 support.

Version: 1.8.25

General Commands
msmtp An SMTP client
msmtpd A minimal SMTP server