I am sending email using
public void sendEmail(String fromEmailAddr, String toEmailAddr,String subject, String emailBody) {
String host = "xxx";
final String user = "user";
final String password = "password";
// Get system properties
Properties properties = new Properties();
// Setup mail server
properties.put("mail.smtp.host", host);
properties.put("mail.smtp.port", "25");
// Get the default Session object.
Session session = Session.getDefaultInstance(properties, null);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(fromEmailAddr));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO, new InternetAddress(toEmailAddr));
// Set Subject: header field
message.setSubject(subject);
// Now set the actual message
message.setText(emailBody);
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
When i try to send email using above code then it comes to message Sent message successfully.... but i got no email. On the other hand if i use authentication then i got the email
properties.put("mail.smtp.host", host);
properties.put("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(properties,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user,password);
}
});
Why ? Is it necessary to provide userName and password for host ? Can i send email by just specifying host, no username and password provided ?
Thanks
I guess the port number might be the issue.
Try changing properties.put("mail.smtp.port", "25");
to properties.put("mail.smtp.port", "587");.
Further you can refer this.
It depends on the mail server you're using.
For example, some mail servers will let you send mail to anyone in the same company without authentication, but authentication is needed to send mail outside of the company. In the latter case, if you send the mail without authenticating, the mail server may accept the message and return a "mailer-daemon" failure message, or might just throw the message away.
Also, see this list of common JavaMail mistakes.
Related
I have a simple web application where different users can log into it. One of the important feature is user can access a document and send email of it's content to an outsider like third party. Below is just how the email looks like to give an idea:
It's pretty self explanatory and I can send to multiple user if I want like abc#example.com,efg#hotmail.com,... in the field box shown.With all this, I am using Java Mail API to make it work and after hitting the send button,it sends directly to the recipient.No issue at all.
Now, I want to modify this by doing this email feature as a service.What this means is when I send the email,the content and info filled in will be stored in a table in MYSQL and the service(running in background) will pick up from the table and do the sending.
This is my function:
public void sendEmail(String recipient, String subject, String content,
String host, String port, final String senderaddress,
final String password) {
try {
System.out.println("Please Wait, sending email...");
/*Setup mail server */
Properties props = new Properties();
props.put("mail.smtp.host", host); //SMTP Host
props.put("mail.smtp.port", port); //TLS Port
props.put("mail.smtp.auth", "true"); //enable authentication
props.put("mail.smtp.starttls.enable", "true"); //enable STARTTLS
//create Authenticator object to pass in Session.getInstance argument
Authenticator auth = new Authenticator() {
//override the getPasswordAuthentication method
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(senderaddress, password);
}
};
Session session = Session.getInstance(props, auth);
session.setDebug(true);
// Define message
MimeMessage message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(senderaddress));
message.addRecipients(Message.RecipientType.TO,
InternetAddress.parse(recipient));
// Set Subject: header field
message.setSubject(subject);
// Now set the actual message
message.setText(content);
try {
Transport.send(message);
} catch (AddressException addressException) {
addressException.printStackTrace();
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
Can this be done in the way I want because I am unsure how to make it work?
1 ) After hitting Sending mail button from UI, You need to call a method for saving data like recipient, subject, content in DB
2)Write an email sender Service which retrieves non_delivered / pending mail from DB table and send it through Java Mail API
3)Scheduled email sender service with the help of ScheduledExecutorService
In the following Code in the session object (PasswordAuthentication ) what username and password we have to provide to send mail ? Sender's username password or receiver's credentials?
I am really confused , I am using java Mail to send mail
public void sendMail(String email,String token)
{
// Recipient's email ID needs to be mentioned.
String to = email;
// Sender's email ID needs to be mentioned
// Assuming you are sending email through relay.jangosmtp.net
String host = "smtp.gmail.com";
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", "587");
// Get the Session object.
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
// Create a default MimeMessage object.
Message message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress("Issme-Customer-Service"));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
message.setSubject("Email Verification Of issme Account");
message.setContent(
"<h2>Email Verification </h2>" +
"<h3> Please goto the following URL to verify your ISSME account\n </h3> " +
token , "text/html; charset=utf-8");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
You need to send the sender's credentials which gmail's SMTP server will authenticate and then it'll send the email.
public static void sendEmail(String msgHeader, String msg, String emailId, String emailFrom) {
Properties props = new Properties();
props.put("mail.smtp.auth", "false");
props.put("mail.debug", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", mailServer);
props.put("mail.smtp.port", port#);
props.put("mail.smtp.auth.mechanisms", "NTLM");
props.put("mail.smtp.auth.ntlm.domain", domainName);
Session session = Session.getDefaultInstance(props, null);
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(emailFrom));
to = emailId;
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
message.setSubject(msgHeader);
message.setText(msg, "utf-8", "html");
message.saveChanges();
session.getDebug();
Transport.send(message);
// Copy message to "Sent Items" folder as read
Store store = session.getStore("ntlm");
store.connect(mailServer, emailFrom, pwd);
Folder folder = store.getFolder("Sent Items");
folder.open(Folder.READ_WRITE);
message.setFlag(Flag.SEEN, true);
folder.appendMessages(new Message[] {message});
store.close();
} catch (Exception ex) {
logger.error("Error occured while sending Email !", ex);
}
}
When I try to execute the code above, i am able to send out the emails. the issue is with saving the email. I get an error (NoSuchProviderException) at the line
Store store = session.getStore("ntlm");
I have a few questions on this:-
The email sending part works without password verification with ntlm. Is it possible to save the sent email into the sent items folder without password verification. If yes then how?
session.getStore doesnt work when i use
a. smtp - exception (Invalid provider)
b. ntlm - exception (NoSuchProviderException)
what should i use here.
Thanks in advance for your help.
"ntlm" is not a type of Store, it's an authentication mechanism. The store types supported by JavaMail are "imap" and "pop3". You almost certainly want "imap". Just like sending, you're going to need to supply your username and password when connecting to your imap server.
Also, upgrade to the current version of JavaMail if possible.
I'm trying to send email using java API and i'm giving the right emailid and password but still i get AuthenticationFailedException.
I also tried giving host=mail.smtp.port and changing port to 587 still i end up getting the same error..
Please help me where i'm going wrong..?
public class SendEmail
{
public static void main(String [] args)
{
// Recipient's email ID needs to be mentioned.
String to = "to#gmail.com";
// Sender's email ID needs to be mentioned
final String from = "from#gmail.com";
// Assuming you are sending email from localhost
final String host = "smtp.googlemail.com";
// Get system properties
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
properties.setProperty("mail.smtp.starttls.enable", "true");
properties.setProperty("mail.smtp.user", from);
//properties.setProperty("mail.smtp.password", "xyz");
properties.setProperty("mail.debug", "false");
properties.setProperty("mail.smtp.auth", "true");
// properties.setProperty("mail.smtp.port", "587");
// Get the default Session object.
// Session session = Session.getDefaultInstance(properties);
Session session = Session.getInstance(properties,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(from, "xyz");
}
});
session.setDebug(true);
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("This is the Subject Line!");
// Now set the actual message
message.setText("This is actual message");
// Send message
// Transport.send(message);
Transport.send(message);
System.out.println("Sent message successfully....");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
}
Error:
javax.mail.AuthenticationFailedException
at javax.mail.Service.connect(Service.java:306)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:105)
at javax.mail.Transport.send0(Transport.java:168)
at javax.mail.Transport.send(Transport.java:98)
Just check if you have enabled logging in from "Less Secure Apps" using this link. This setting needs to be enabled for the account from#gmail.com.
My requirement is to send E-Mail Alerts to various customers for our client for which, we're planning to use JavaMail API. However, once mail is sent, we need to update status in DB as Sent/Delivered/Failure depending on the status of the mail. Please tell me how do we get Delivery Notification for the mail reaching the Mail Server of the Receiver. It's not necessary to ensure whether the person has read the mail or not, however, it will be great if we'll be able to know that. The mandatory thing to check is for delivery. How can we get the status. What I read was that using 'SMTPMessage' we can get the status, however, I couldn't find a code sample for how to read the Notification. I am putting my code which is very sample of what I have done till now. Please let me know how I can achieve the thing which we are trying to fulfill.
public class MailSender {
private int port = 25;
private String host = "testmailsrvr";
private String from = "test#test.com";
private boolean auth = true;
private String username = "test";
private String password = "test#123";
private Protocol protocol = Protocol.SMTP;
private boolean debug = true;
public void sendEmail(String strMailID, String strSubject, String strBody) throws MessagingException{
Properties props = new Properties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", port);
switch (protocol) {
case SMTPS:
props.put("mail.smtp.ssl.enable", true);
break;
case TLS:
props.put("mail.smtp.starttls.enable", true);
break;
case SMTP:
props.put("mail.smtp.ssl.enable", false);
break;
}
Authenticator authenticator = null;
if (auth) {
props.put("mail.smtp.auth", true);
authenticator = new Authenticator() {
private PasswordAuthentication pa = new PasswordAuthentication(username, password);
#Override
public PasswordAuthentication getPasswordAuthentication() {
return pa;
}
};
}
Session session = Session.getInstance(props, authenticator);
session.setDebug(debug);
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
InternetAddress[] toAddress = {new InternetAddress(strMailID)};
message.setRecipients(Message.RecipientType.TO, toAddress);
message.setSubject(strSubject);
message.setSentDate(new Date());
message.setText(strBody);
Transport.send(message);
}
}
You'll want to read these JavaMail FAQ entries:
If I send a message to a bad address, why don't I get a SendFailedException or TransportEvent indicating that the address is bad?
When a message can't be delivered, a failure message is returned. How can I detect these "bounced" messages?
Then read the javadocs for the com.sun.mail.smtp and com.sun.mail.dsn packages to learn about Delivery Status Notifications.
You will have to approach the issue differently. The Transport.send() method will throw a SendFailedException if it runs into problems sending to any of the recipients. The exception will give you information on which recipient addresses failed. You should catch that exception, get the failing addresses and record them.
You might want to look into http://www.ultrasmtp.com. This service will send a notice back to the recipient upon the message being accepted, deferred, or refused by the receiving mail server. There is also an option to setup alerts for opened messages.