404 Not Found error in SOAP web service request via CFHTTP - coldfusion

Question

I am having a lot of trouble communicating with a web service for our membership database. I get a valid result from my SOAP envelope when using SoapUI. But when I try to send the same envelope using CFHTTP and CF9 (I know, I know), I get a "404 Not Found" error no matter what I try to do. Accessing the URL in a browser gives me an "access denied" error.
Here is what I have in cfsavecontent:
<cfsavecontent variable="soapBody">
<cfoutput>
<?xml version=“1.0” encoding=“utf-8”?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sch="http://membersuite.com/schemas" xmlns:con="http://membersuite.com/contracts">
<soapenv:Header>
<sch:ConciergeRequestHeader>
<!--Optional:-->
<sch:BrowserId></sch:BrowserId>
<!--Optional:-->
<sch:SessionId></sch:SessionId>
<sch:AccessKeyId>MyAccessKey</sch:AccessKeyId>
<!--Optional:-->
<sch:AssociationId>MyAssociationID</sch:AssociationId>
<sch:Signature>MySignature</sch:Signature>
</sch:ConciergeRequestHeader>
</soapenv:Header>
<soapenv:Body>
<con:LoginToPortal>
<!--Optional:-->
<con:portalUserName>username</con:portalUserName>
<!--Optional:-->
<con:portalPassword>password</con:portalPassword>
</con:LoginToPortal>
</soapenv:Body>
</soapenv:Envelope>
</cfoutput>
</cfsavecontent>
And here is my cfhttp:
<cfhttp url="https://soap.membersuite.com/mex" method="post" useragent="#CGI.http_user_agent#">
<cfhttpparam type="header" name="charset" value="utf-8">
<cfhttpparam type="header" name="mimetype" value="application/xml" />
<cfhttpparam type="header" name="content-type" value="text/xml">
<cfhttpparam type="header" name="SOAPAction" value="http://membersuite.com/contracts/IConciergeAPIService/LoginToPortal" />
<cfhttpparam type="header" name="accept-encoding" value="no-compression" />
<cfhttpparam type="header" name="content-length" value="#len(trim(soapBody))#">
<cfhttpparam type="xml" name="soapenv" value="#trim(soapBody)#" />
</cfhttp>
Dumping cfhttp gives me this error:
It seems obvious to me that the remote server is telling me it cannot find what I am asking it for. But it is the right endpoint, and I can see it in the WSDL:
<wsdl:operation name="LoginToPortal">
<wsdl:input wsaw:Action="http://membersuite.com/contracts/IConciergeAPIService/LoginToPortal" message="tns:IConciergeAPIService_LoginToPortal_InputMessage"/>
<wsdl:output wsaw:Action="http://membersuite.com/contracts/IConciergeAPIService/LoginToPortalResponse" message="tns:IConciergeAPIService_LoginToPortal_OutputMessage"/>
</wsdl:operation>
I have also added the SSL cert from the web service page to my CF keystone; no change in error message. I am at my wit's end and would appreciate any suggestions! Again, I am getting expected results back via SoapUI. Thank you all very much!

Answer 1

Going strictly off the SoapUI request, it seems to work if the target URL is changed to https://soap.membersuite.com/. Using bogus credentials, the response changes to "Invalid Access Key ID specified" instead of 404.
<cfhttp url="https://soap.membersuite.com/" method="post" useragent="#CGI.http_user_agent#">
<cfhttpparam type="header" name="Content-Type" value="text/xml; charset=utf-8" />
<cfhttpparam type="header" name="SOAPAction" value="http://membersuite.com/contracts/IConciergeAPIService/LoginToPortal" />
<cfhttpparam type="header" name="Accept-Encoding" value="no-compression" />
<cfhttpparam type="header" name="Content-Length" value="#len(trim(soapBody))#">
<cfhttpparam type="body" value="#trim(soapBody)#" />
</cfhttp>