[flexcoders] Unable to pass objects from Flex to Coldfusion

[francescomagalini]

I'm not able to pass objects from flex3 to coldfusion8:
I've to send a "mail object" to a cfc that has a <cfmail>: the cfc is ok
(tested with a cfm page)

MXML:

private function initSendMailRO():void {
sendMailRO = new RemoteObject();
sendMailRO.source = "pvlive091.cfcs.mailer";
sendMailRO.destination = "ColdFusion";
sendMailRO.sendMail.addEventListener("result", sendMailResultHandler);
sendMailRO.addEventListener("fault" , sendMailFaultHandler);
}



private function buildMail():void {
mailObject = new Object;
mailObject.sender = "xxx";
mailObject.address = "[EMAIL PROTECTED]";
mailObject.subject = "xxxx";
sendMailRO.sendMail(mailObject);
}

the console output:
FaultEvent fault=[RPC Fault faultString="Unable to invoke CFC - The
MAILOBJECT parameter to the sendMail function is required but was not
passed in." faultCode="Server.Processing" faultDetail=""]

any idea?
thank you very much!