Log Message:
Update to 1.2.3, provided by Sergio Jimenez in PR 26975.
Changes since 1.0.0:

Version 1.2.3:
- IPv6 support on Windows systems
- The configuration file supports all commands and arguments related to
  TLS and authentication, even if TLS and/or GNU SASL support is not
  compiled in
- The GNU SASL library is not required to support DIGEST-MD5 and NTLM
  anymore. This means you can now use the packaged versions of the library
  from Gentoo or Debian sarge.
- You can use the -v/--version option to find out which authentication
  methods are supported.

Version 1.2.2:
- Enhancements to the logfile command:
  - All available information is now written to the logfile (new fields:
    mailsize=..., smtpmsg='...', errormsg='...').
  - Logging to standard output is possible by using "logfile -"

Version 1.2.1:
- No new features.

Version 1.2.0:
- This version can be compiled without TLS/SSL support; use
  --disable-ssl if you really want that.
- Read the entries for versions 1.1.x for more changes since the last
  stable version 1.0.0.

Version 1.1.3:
- New option -i for compatibility with mail(1).
- New 'logfile' command; see man page for details.

Version 1.1.2:
- No user visible changes.

Version 1.1.1:
- The tls_nostarttls command now sets the default port to 465 (ssmtp).

Version 1.1.0:
- Support for SMTP command pipelining. On high latency networks, this
  may increase transmission speed, especially when sending to many
  recipients.
- The short option for --file, -f, has changed to -F
- A new option --from/-f is available to set the envelope from address.
- A new option --serverinfo/-S is available to print information
  about the capabilities and limitations of an SMTP server