I am using stunnel to enable SoapUI Mock Servers to support SSL connections. I am attempting to send the following SSL message: https://services.greenbuttondata.org/oauth/token?grant_type=client_credentia ls <https://services.greenbuttondata.org/oauth/token?grant_type=client_credenti als&scope=FB=39_40> &scope=FB=39_40 Using Wireshark, it appears the message being sent is POST /oauth/token?grant_type=client_credentials&scope=FB=39_40 which is receiving the following response: Error 404 (Not Found) The contents of the stunnel.conf file is: ; ***************************************************************** : * Service definitions (at least one service has to be defined) * ; ***************************************************************** ; ***************************************************************** ; * Resource Server * ; ***************************************************************** [resourceServer] accept=localhost:8080 connect=services.greenbuttondata.org:443 ciphers=AES128-SHA client=yes cert=/etc/stunnel/stunnel.pem verify=0 ; ***************************************************************** ; * Authorization Server * ; ***************************************************************** [authorizationServer] accept=localhost:8082 connect=services.greenbuttondata.org:443 ciphers=AES128-SHA client=yes cert=/etc/stunnel/stunnel.pem verify=0 [tpserver] accept=localhost:8444 connect=localhost:8081 cert=/etc/stunnel/stunnel.pem ciphers=AES128-SHA client=no verify=0 The HTTP log from SoapUI shows the following: "POST /oauth/token?grant_type=client_credentials&scope=FB=36_40 HTTP/1.1" "Accept-Encoding: gzip.deflate" "Content-Type: application/json" "Authorization: Basic UkVHSV... " (not shown for security) "Content-Length: 0" "Host: localhost:8082" "Connection: Keep-Alive" "User-Agent: Apache-HttpClient/4.1.1 (java 1.5)" "HTTP/1.1 404 Not Found" "Content-Type: text/html: charset=UTF-8" "Server: ghs" "Content-Length: 1623" "X-XSS-Protection: 1; mode=block" "X-Frame-Options: SAMEORIGIN" Through experimentation, the request only fails when using the stunnel proxy server, but works when sent directly to the targeted endpoint. Any assistance would be greatly appreciated. Best regards, Don Donald F. Coffin Technical Manager Green Button Alliance 2335 Dunwoody Crossing Suite E Dunwoody, GA 30338-8221 http://www.greenbuttonalliance.org <http://www.greenbuttonalliance.org/> (949) 636-8571 Mobile