servicemix-mail provider endpoint

[Marianna Giacchetta]

hi,
i can't config the mail provider endpoint to work properly.
i would like to use the gmail outgoing mail server. it uses the SMTP
encrypted protocol.

i tried with this config in the xbean.xml file:

<mail:sender service="services:mail-service"
            endpoint="mail-endpoint"
            sender="zzz...@gmail.com"
            receiver="zz...@hotmail.it"
            debugMode="true"
            connection="smtp://smtp.gmail.com:587?password=zzzzzz"/>

it gives me this exception:

com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.0 Must issue a
STARTTLS command first. u9sm4177318wbg.12



i'm using:
servicemix version: 3.3.2
OS: ubuntu maverick
JVM openjdk 1.6



can someone help me? :(
thanks,
marianna