The following code is working as Java application eclipse, But when it deployed in SAP PO server the below exception is thrown:
Note : Stand alone java file is running on my laptop(Windows) where as server is not Linux
javax.mail.MessagingException: Could not convert socket to TLS; nested exception is: java.net.SocketException: java.security.NoSuchAlgorithmException: Error constructing implementation (algorithm: Default, provider: SunJSSE, class: com.sun.net.ssl.internal.ssl.DefaultSSLContextImpl)
public static void main(String[] args) {
PropertiesSerDto dto = new PropertiesSerDto();
dto.setEmailAuth("true");
dto.setEmailStarttlsEnable("true");
dto.setEmailHost("outlook.office365.com");
dto.setEmailPort("587");
dto.setEmailPassword("1234");
dto.setEmailFrom("test@mail.com");
dto.setEmailUser("test@mail.com");
String to="to@gmail.com";
String subject="Mail Testing";
String message = "Hello";
try {
sendHtmlEmail(dto,to,subject,message);
} catch (AddressException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void sendHtmlEmail(PropertiesSerDto dto, String to, String subject, String message) throws AddressException, MessagingException {
// sets SMTP server properties
Properties properties = new Properties();
properties.put("mail.smtp.host", dto.getEmailHost());
properties.put("mail.smtp.port", dto.getEmailPort());
properties.put("mail.smtp.auth", dto.getEmailAuth());
properties.put("mail.smtp.starttls.enable", dto.getEmailStarttlsEnable());
final String user = dto.getEmailUser();
final String password = dto.getEmailPassword();
// creates a new session with an authenticator
Authenticator auth = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
};
Session session = Session.getInstance(properties, auth);
// creates a new e-mail message
Message messageContent = new MimeMessage(session);
messageContent.setFrom(new InternetAddress(dto.getEmailFrom()));
InternetAddress[] iAdressArray = InternetAddress.parse(to);
messageContent.setRecipients(Message.RecipientType.TO, iAdressArray);
messageContent.setSubject(subject);
messageContent.setSentDate(new Date());
// set plain text message
messageContent.setContent(message, "text/html");
// sends the e-mail
Transport.send(messageContent);
}
For the record to be left, I was having the same problem and thought it was an issue in the server configuration. It turned out to be a firewall configuration. This was not letting out the connection requests to the smtp server.
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