Log Message:
Update to 20181104.0. From the changelog:

New Features:
* Added --dump-mail option.
* Added --xclient-delim, --xclient-destaddr, --xclient-destport,
  --xclient-no-verify, and --xclient-before-starttls options.

Notable Changes:
* XCLIENT can now send multiple XCLIENT requests.  Because of this,
  --xclient and --xclient-ATTR values are no longer merged into one
  string.  This breaks previously documented behavior.
* Numerous improvements to the output of --dump and --dump-as-body,
  including the ability to limit output by section, layout improvements,
  adding missing options to output, and fixing bugs.

Notable Bugs Fixed:
* Fixed bug preventing Proxy from working with --tls-on-connect.
* XCLIENT is now sent after STARTTLS to match with Postfix's expectations.
* Fixed bug which could allow mail sending to proceed without a valid
  recipient.
* Replacing a multi-line header via --header or --h-HEADER now replaces
  the entire header, not just the first line.
* The option for specifying the local port was documented as --local-port
  but implemented as --lport.  Both are now documented and implemented.
* Fixed two bugs which prevented interactions between --dump,
  --auth-hide-password, --dump-as-body, and --dump-as-body-shows-password
  from producing consistent output.