	use extended error codes as noted in rfc1893.
	use extended error codes as noted in rfc1893.

	retain additional message in check_relay ruleset,
	the message is written into the maillog.
	this is useful to a site's postmaster.
Reviewed by:	jmb
Submitted by:	Ruslan Ermilov ru@ucb.crimea.ua

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase