HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Cache-Control: private
RETS-Version: RETS/1.7.2
Set-Cookie: JSESSIONID=09268CCA90AFF1ECA0DA1B1669B89784; Path=/rets2_1
Content-Type: text/xml
Content-Encoding: gzip
Vary: Accept-Encoding
Date: Mon, 08 Sep 2014 04:13:27 GMT
Connection: close

<RETS ReplyCode="20203" ReplyText="RETS Server: Specified Class (Z) is not valid. See: https://www.flexmls.com/rets/e/19">
Valid Classes are:
	A
	B
	C
	E
	F
	G
	H
	I
</RETS>