javax.mail.MessagingException: Could not connect to SMTP host?

email, java, servlets

Solution

This is these two lines which was casting me the problem :

m_properties.put("mail.smtp.socketFactory.port", "465");
  m_properties.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");

and added this line :

m_properties.put("mail.smtp.starttls.enable", "true");

After removing and adding the above lines of code it worked fine.

Problem

following is my code to send mail: ``` import java.util.Properties; import javax.mail.Authenticator; import javax.mail.Message; import javax.mail.Message.RecipientType; import javax.mail.MessagingException; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; public class SendMail { public void sendMail(String m_from,String m_to,String m_subject,String m_body){ try { Session m_Session; Message m_simpleMessage; InternetAddress m_fromAddress; InternetAddress m_toAddress; Properties m_properties; m_properties = new Properties(); m_properties.put("mail.smtp.host", "usdc2spam2.slingmedia.com"); m_properties.put("mail.smtp.socketFactory.port", "465"); m_properties.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory"); m_properties.put("mail.smtp.auth", "true"); m_properties.put("mail.smtp.port", "9000"); m_Session=Session.getDefaultInstance(m_properties,new Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("aaaaa","bbbbb@1"); // username and the password } }); m_simpleMessage = new MimeMessage(m_Session); m_fromAddress = new InternetAddress(m_from); m_toAddress = new InternetAddress(m_to); m_simpleMessage.setFrom(m_fromAddress); m_simpleMessage.setRecipient(RecipientType.TO, m_toAddress); m_simpleMessage.setSubject(m_subject); m_simpleMessage.setContent(m_body, "text/html"); //m_simpleMessage.setContent(m_body,"text/plain"); Transport.send(m_simpleMessage); } catch (MessagingException ex) { ex.printStackTrace(); } } public static void main(String[] args) { SendMail send_mail = new SendMail(); String empName = "xxxxx"; String title ="<b>Hi !"+empName+"</b>"; send_mail.sendMail("123erft@slingmedia.com", "abz@gmail.com", "Please apply for leave for the following dates", title+"<br>by<br><b>HR<b>"); } } ``` but when i run the code it gives me the following exception. ``` javax.mail.MessagingException: Could not connect to SMTP host: usdc2spam2.slingmedia.com, port: 9000; nested exception is: java.net.ConnectException: Connection refused: connect at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1934) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:638) at javax.mail.Service.connect(Service.java:317) at javax.mail.Service.connect(Service.java:176) at javax.mail.Service.connect(Service.java:125) at javax.mail.Transport.send0(Transport.java:194) at javax.mail.Transport.send(Transport.java:124) at samples.SendMail.sendMail(SendMail.java:46) at samples.SendMail.main(SendMail.java:55) Caused by: java.net.ConnectException: Connection refused: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(Unknown Source) at java.net.PlainSocketImpl.connectToAddress(Unknown Source) at java.net.PlainSocketImpl.connect(Unknown Source) at java.net.SocksSocketImpl.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:288) at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:231) at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1900) ``` when i ping this `usdc2spam2.slingmedia.com` it gives me reply without any problem. I am using `windows 7` Please help me to resolve this.

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