Hi, I have a problem sendin mail via Javamail. Here is the code: Properties props = new Properties(); props.setProperty("mail.smtp.host", "pop3.lookatnenes.com"); props.setProperty("mail.smtp.starttls.enable", "true"); props.setProperty("mail.smtp.port", "25"); props.setProperty("mail.smtp.user", "info@lookatnenes.com"); props.setProperty("mail.smtp.auth", "true"); // Preparamos la sesion Session session = Session.getDefaultInstance(props, null); MimeMessage message = new MimeMessage(session); message.setFrom(new InternetAddress("info@lookatnenes.com")); message.addRecipient(Message.RecipientType.TO,new InternetAddress("myEmail@yahoo.es")); message.setSubject("Hola"); message.setText("Test"); Transport t; t = session.getTransport("smtp"); t.connect("pop3.lookatnenes.com","info@lookatnenes.com", "mypassword"); t.sendMessage(message, message.getAllRecipients()); t.close(); I receive the exception: Send failed; nested exception is: javax.mail.MessagingException: decompression_failure: remotely generated; fatal; nested exception is: gnu.javax.net.ssl.provider.AlertException: decompression_failure: remotely generated Could you help me please? I do not have any idea what this exception means. Thanks a lot