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Sending EMail with Javamail via Exchange Server

we have an Exchange Server and i wanted to test sending a mail with it. But somehow i always get the error:
com.sun.mail.smtp.SMTPSendFailedException: 550 5.7.1 Message rejected as spam by Content Filtering.
at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2108)
at com.sun.mail.smtp.SMTPTransport.finishData(SMTPTransport.java:1889)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1120)
at javax.mail.Transport.send0(Transport.java:195)
at javax.mail.Transport.send(Transport.java:124)
at Test.sendMailJava(Test.java:89)
at Test.main(Test.java:29)
i tried looking at our exchange if anonymous users were allowed and they are, our Printer also send Mails without any authentification.
Here is my Java code, hope someone can help:
import java.net.URI;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import org.simplejavamail.email.Email;
import org.simplejavamail.mailer.Mailer;
import org.simplejavamail.mailer.config.ProxyConfig;
import org.simplejavamail.mailer.config.ServerConfig;
import org.simplejavamail.util.ConfigLoader;
public class Test {
public static void main(String[] args) {
//// // TODO Auto-generated method stub
sendMailJava();
}
public static void sendMailJava()
{
String to = "Recipient"
// Sender's email ID needs to be mentioned
String from = "Sender";
// Assuming you are sending email from localhost
String host = "Server Ip-Adress";
// Get system properties
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
properties.setProperty("mail.smtp.port", "25");
properties.setProperty("mail.imap.auth.plain.disable","true");
properties.setProperty("mail.debug", "true");
Session session = Session.getDefaultInstance(properties);
try {
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
// Set Subject: header field
message.setSubject("Subject");
// Now set the actual message
message.setContent("Content", "text/html; charset=utf-8");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
}
I also tried SimpleMail, but there is the same error.
The Connection to the smtp Server seems to work, but the message cannot be send, cause of the error above. What could it be?
Greetings,
Kevin
Edit:
i found my error, i don't know why our printers can send maisl without errors but it seems i had to whitelist my ip at our exchange server. Code was completely fine.
thanks for the help

I know you are wanting the smtp option, but I have a feeling the issue is how your server is setup and not in your code. If you get the EWS-Java Api, you can log into your exchange server directly and grab mail that way. Below is the code that would make that work:
public class ExchangeConnection {
private final ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010_SP2); // change to whatever server you are running, though 2010_SP2 is the most recent version the Api supports
public ExchangeConnection(String username, String password) {
try {
service.setCredentials(new WebCredentials(username, password));
service.setUrl(new URI("https://(your webmail address)/ews/exchange.asmx"));
}
catch (Exception e) { e.printStackTrace(); }
}
public boolean sendEmail(String subject, String message, List<String> recipients, List<String> filesNames) {
try {
EmailMessage email = new EmailMessage(service);
email.setSubject(subject);
email.setBody(new MessageBody(message));
for (String fileName : fileNames) email.getAttachments().addFileAttachment(fileName);
for (String recipient : recipients) email.getToRecipients().add(recipient);
email.sendAndSaveCopy();
return true;
}
catch (Exception e) { e.printStackTrace(); return false; }
}
}
In your code you just have to create the class, then use the sendEmail method to send emails to whomever.

Your JavaMail code is not authenticating to your server, which may be why the server is rejecting the message with that error message. (Spammers often use open email servers.)
Change your code to call the Transport.send method that accepts a user name and password.

Using Java Mail

I would like to send an email using my Java Application.
When I press a button, there should be automatically sent an email , but somehow I didn't find the solution yet.
I found a lot of example codes in the internet, but it doesn't matter if I use Gmail / gmx or outlook, I always receive the message :
"Could not connect to SMTP host: mail.gmx.net, port: 587;
nested exception is:
java.net.ConnectException: Connection timed out: connect"
Based on the domain, so the host is mail.gmx.net or smtp.office365.com etc..
So I think there's somehow a connection problem, but I wasn't able to fix it.
Do you have some ideas / codes that worked for you ?
Thank you in advance.
Tobias

Use this code for send Email .This works fine for me
package SendMail;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
/**
* #author akash073
*
*/
public class CrunchifyJavaMailExample {
//static Properties mailServerProperties;
// static Session getMailSession;
// static MimeMessage generateMailMessage;
public static void main(String args[]) throws AddressException, MessagingException {
generateAndSendEmail();
System.out.println("\n\n ===> Your Java Program has just sent an Email successfully. Check your email..");
}
public static void generateAndSendEmail() throws AddressException, MessagingException {
String smtpHost="put Your Host";
String smtpUser="UserName in full #somthing.com";
String smtpPassword="your password";
int smtpPort=25;//Port may vary.Check yours smtp port
// Step1
System.out.println("\n 1st ===> setup Mail Server Properties..");
Properties mailServerProperties = System.getProperties();
//mailServerProperties.put("mail.smtp.ssl.trust", smtpHost);
// mailServerProperties.put("mail.smtp.starttls.enable", true); // added this line
mailServerProperties.put("mail.smtp.host", smtpHost);
mailServerProperties.put("mail.smtp.user", smtpUser);
mailServerProperties.put("mail.smtp.password", smtpPassword);
mailServerProperties.put("mail.smtp.port", smtpPort);
mailServerProperties.put("mail.smtp.starttls.enable", "true");
System.out.println("Mail Server Properties have been setup successfully..");
// Step2
System.out.println("\n\n 2nd ===> get Mail Session..");
Session getMailSession = Session.getDefaultInstance(mailServerProperties, null);
MimeMessage generateMailMessage = new MimeMessage(getMailSession);
generateMailMessage.setFrom (new InternetAddress (smtpUser));
generateMailMessage.addRecipient(Message.RecipientType.TO, new InternetAddress("akash073#waltonbd.com"));
generateMailMessage.addRecipient(Message.RecipientType.CC, new InternetAddress("akash073#gmail.com"));
generateMailMessage.setSubject("Greetings from Crunchify..");
String emailBody = "2.Test email by Crunchify.com JavaMail API example. " + "<br><br> Regards, <br>Crunchify Admin";
generateMailMessage.setContent(emailBody, "text/html");
System.out.println("Mail Session has been created successfully..");
// Step3
System.out.println("\n\n 3rd ===> Get Session and Send mail");
Transport transport = getMailSession.getTransport("smtp");
// Enter your correct gmail UserID and Password
// if you have 2FA enabled then provide App Specific Password
transport.connect(smtpHost,smtpPort, smtpUser, smtpPassword);
transport.sendMessage(generateMailMessage, generateMailMessage.getAllRecipients());
transport.close();
}
}
For more info crunchify

Trying to write a java program to send email but getting error [duplicate]

This question already has answers here:
Gmail as JavaMail SMTP server
(1 answer)
How can I send an email by Java application using GMail, Yahoo, or Hotmail?
(14 answers)
Closed 7 years ago.
I'm new in Java world and trying to create a small app to send email to my gmail account. But I am getting some error which I tried to solve, but failed. My full code is the following:
import java.io.UnsupportedEncodingException;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendMyEmail {
public static void main(String[] args) throws UnsupportedEncodingException {
System.out.println("Hello");
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
String msgBody = "...";
try {
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress("tinyNina#gmail.com", "Example.com Admin"));
msg.addRecipient(Message.RecipientType.TO,
new InternetAddress("tinyNina#gmail.com", "Mr. User"));
msg.setSubject("Your Example.com account has been activated");
msg.setText(msgBody);
Transport.send(msg);
System.out.println("Done");
} catch (AddressException e) {
System.out.println(e);
// ...
} catch (MessagingException e) {
System.out.println(e);
// ...
}
And I am getting the following error:
Hello
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: localhost, 25; timeout -1;
nested exception is:
java.net.ConnectException: Connection refused: connect
}
}
Can anybody tell me where I am doing some mistake?
Note: I tried lots of ways and then I found a google link https://cloud.google.com/appengine/docs/java/mail/ and then I tried and getting that error.

Hotmail SMTP not working with javamail

I am trying to write a simple Java program to send emails from my hotmail account using JavaMail API. Here is my code :
import java.util.Properties;
import javax.mail.Message;
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 HotMailSend {
public static void main(String args[])
{
final String username = HOTMAIL.username;
final String password = HOTMAIL.password;
Properties props = new Properties();
props.setProperty("mail.smtp.auth", "true");
props.setProperty("mail.smtp.starttls.enable", "true");
props.setProperty("mail.smtp.host", "smtp.live.com");
props.setProperty("mail.smtp.port", "587");
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(HOTMAIL.username));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(GMAIL.username));
message.setSubject("Testing Subject");
message.setText("Hey Buddy..!!!,"
+ "\n\n No spam to my email, please!");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
}
And here is the error I am getting :
Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: Can't send command to SMTP host;
nested exception is:
java.net.SocketException: Connection closed by remote host
at HotMailSend.main(HotMailSend.java:45)
Caused by: javax.mail.MessagingException: Can't send command to SMTP host;
nested exception is:
java.net.SocketException: Connection closed by remote host
at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2163)
at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2150)
at com.sun.mail.smtp.SMTPTransport.close(SMTPTransport.java:1220)
at javax.mail.Transport.send0(Transport.java:197)
at javax.mail.Transport.send(Transport.java:124)
at HotMailSend.main(HotMailSend.java:40)
Caused by: java.net.SocketException: Connection closed by remote host
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.checkWrite(SSLSocketImpl.java:1307)
at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:43)
at com.sun.mail.util.TraceOutputStream.write(TraceOutputStream.java:114)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2161)
... 5 more

I've used SMTP/Javamail with Hotmail before, so it definitely works. Were you sending a lot of emails in a short time? (I think they may block your mail or send it to the junk folder when you do that as a spam prevention measure.)

Check the e-mail that you're currently using if it arrived some message from microsoft.
With me occurred this problem, and when i looked for it, I had one e-mail that had the following subject: Verify your account to do more with Outlook.com.
They asked me to confirm that i'm really a human so I could continue to send automatic messages. They sent me a message to my cellphone and I managed to keep sending e-mails with Java Mail.

How to set Email Client in Java?

i'm trying the very simple Email Client in java.
When i launch the programe i have an error message:
Exception in thread "main" javax.mail.AuthenticationFailedException: EOF on socket
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:146)
at javax.mail.Service.connect(Service.java:297)
at javax.mail.Service.connect(Service.java:156)
at SimpleEmailClient2.main(SimpleEmailClient2.java:21)
Java Result: 1
Why?
i use Gmail account and i set the POP and IMAP enabled
What could be the possible error in my code?
Thank you
here is the code:
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
public class SimpleEmailClient2 {
public static void main(String[] args) throws Exception {
Properties props = new Properties();
String host = "pop.gmail.com";
String provider = "pop3";
Session session = Session.getDefaultInstance(props, new MailAuthenticator());
Store store = session.getStore(provider);
store.connect(host, null, null);
Folder inbox = store.getFolder("INBOX");
if (inbox == null) {
System.out.println("No INBOX");
System.exit(1);
}
inbox.open(Folder.READ_ONLY);
Message[] messages = inbox.getMessages();
for (int i = 0; i < messages.length; i++) {
System.out.println("Message " + (i + 1));
messages[i].writeTo(System.out);
}
inbox.close(false);
store.close();
}
}
class MailAuthenticator extends Authenticator {
public MailAuthenticator() {
}
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("email#gmail.com", "password");
}
}

I don't believe gmail supports the pop3 provider; you have to use pop3s instead. Otherwise this should work fine.

Oracle has information on connecting javamail to gmail here.
Specifically it looks like you're failing when trying to establish the connection, likely because you don't specify a username/password to connect to. Try connecting using something like:
store.connect(host, "user618111#gmail.com", "[myPassword]");