j'ai utilisé le port 465 est çà marche pas aussi.bon j'ai remplacé le protocole smtps par smtp avec port 25 et j'ai reçu une erreur :
DEBUG: setDebug: JavaMail version 1.3.2
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.xxx.xxx", port 25, isSSL false
setting up default SSLSocketFactory
use default SunJSSE impl class: com.sun.net.ssl.internal.ssl.SSLSocketFactoryImpl
class com.sun.net.ssl.internal.ssl.SSLSocketFactoryImpl is loaded
keyStore is :
keyStore type is : jks
keyStore provider is :
init keystore
init keymanager of type SunX509
trustStore is: /usr/java/jre1.5.0_02/lib/security/cacerts
trustStore type is : jks
trustStore provider is :
init truststore
.....
Timer-0, handling exception: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
Timer-0, SEND TLSv1 ALERT: fatal, description = unexpected_message
Timer-0, WRITE: TLSv1 Alert, length = 2
[Raw write]: length = 7
0000: 15 03 01 00 02 02 0A .......
Timer-0, called closeSocket()
DEBUG SMTP: exception reading response: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

je pense que c'est un pb de d'ajout de keystore et trustStore dans le code java.
pourriez vous me fournir une indication?