Log Message:
postfix: Update to 3.8.1

Major changes with Postfix 3.8.1
================================

- Security: the Postfix SMTP server optionally disconnects remote SMTP clients
  that violate RFC 2920 (or 5321) command pipelining constraints. The server
  replies with "554 5.5.0 Error: SMTP protocol synchronization" and \ 
logs the
  unexpected remote SMTP client input. Specify "smtpd_forbid_unauth_pipelining
  = yes" to enable. This feature is enabled by default in Postfix 3.9 and
  later.

- Workaround to limit collateral damage from OS distributions that crank up
  security to 11, increasing the number of plaintext email deliveries. This
  introduces basic OpenSSL configuration file support, with two new parameters
  "tls_config_file" and "tls_config_name". Details are in \ 
the postconf(5)
  manpage under "tls_config_file" and "tls_config_name".

Full release notes:
http://cdn.postfix.johnriley.me/mirrors/postfix-release/official/postfix-3.8.1.RELEASE_NOTES