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.
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
I have an automated java mail application that sends automated mail to users when some important update occur in our database. It was working fine. However it started to give me errors and I realized that it's not working.
The error says:
"Please log in via your web browser and then try again.
Learn more at https://support.google.com/mail/bin/answer.py?answer=78754 l10sm7526045oev.7 - gsmtp"
The java mail application that I write is huge and contains some confidential values(password etc.), I decided to write a sample demo to show you what's going on. It gives me the same error. Please assume that javax.MAIL API has been imported to the project. Here is what I have:
public class MailDemo {
public static void main(String[] args) {
final String userName = "dummyEmail#gmail.com";
final String password = "dummyPassword";
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", "smtp.gmail.com");//Smtp server address
props.put("mail.smtp.port", "587");//port for the smtp server
Session session = Session.getInstance(props, new Authenticator(){
protected PasswordAuthentication getPasswordAuthentication(){
return new PasswordAuthentication(userName, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("dummyEmail#gmail.com"));//from email address
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("dummyEmail#gmail.com"));//to email address
message.setSubject("My first Email");//Subject of the mail
message.setContent("<h1>This is a test email</h1>", "text/html; charset=utf-8");//Content of the mail
Transport.send(message);//send the message
System.out.println("Email Stiation:Done!");
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
Well, i found the problem. Actually the codes are correct. It's gmail. it blocks the sign in attempts.I think that gmail thinks the attempts are not real.
I need to send at least 200 messages from a stretch. When the program starts, send mail successfully to 15 or 17, then I get this error:
MESSAGE ERROR:
com.sun.mail.smtp.SMTPSendFailedException: 421 4.4.2 Message submission rate for this client has exceeded the configured limit
What I can do?
CODE JAVA
public void mandarEmail(String correos, String mensaje, String asunto) {
Message message;
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.transport.protocol", "smtp");
props.setProperty("mail.smtp.port", "587");
props.put("mail.smtp.host", "pod51004.outlook.com");
props.put("mail.smtp.debug", "true");
Session session = Session.getInstance(props, new javax.mail.Authenticator() {
#Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("docemail#usmp.pe", "docpass");
}
});
try {
message = new MimeMessage(session);
message.setFrom(new InternetAddress("USMP - FN <documentos-fn#usmp.pe>"));
message.setSubject(asunto);
message.addRecipients(Message.RecipientType.TO, InternetAddress.parse(correos));
message.addRecipients(Message.RecipientType.BCC, new InternetAddress[]{new InternetAddress("ivan_pro_nice#hotmail.com")});
message.setContent(mensaje, "text/html; charset=utf-8");
Transport transport = session.getTransport("smtp");
transport.connect("docemail#usmp.pe", "docpass");
transport.sendMessage(message, message.getAllRecipients());
transport.close();
} catch (MessagingException e) {
throw new RuntimeException(e);
} finally {
props = null;
message = null;
}
}
That's the server you're connecting to, and not a client issue. Here's a doc on how to parse SMTP codes from the server.
A mail server will reply to every request a client (such as your email
program) makes with a return code. This code consists of three
numbers.
In your case, you're getting 421.
You probably need to pay for a "business" account from your mail server vendor so they'll let you send more email.
if you want to send single email to 200 clients. Than u can add an array of reciever's email addresses of size upto 50.
but i you want to send different msg for each email. Then you can create a new connection to email server with a counter that counts send emails as well as it counts 15 it should create a new connection.
to test your code use mailtrap.io
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.
I am writing a simple Java program to send mail, but am getting errors. Here's the code:
package mypackage;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
// Send a simple, single part, text/plain e-mail
public class Sendmail {
public static void main(String[] args) {
// SUBSTITUTE YOUR EMAIL ADDRESSES HERE!!!
String to = "atul.krbhatia#gmail.com";
String from = "atul.krbhatia#gmail.com";
// SUBSTITUTE YOUR ISP'S MAIL SERVER HERE!!!
String host = "smtp.gmail.com";
// Create properties, get Session
Properties props = new Properties();
// If using static Transport.send(),
// need to specify which host to send it to
props.put("mail.smtp.host", host);
// To see what is going on behind the scene
props.put("mail.debug", "true");
Session session = Session.getInstance(props);
try {
// Instantiatee a message
Message msg = new MimeMessage(session);
System.out.println("in try blk");
//Set message attributes
msg.setFrom(new InternetAddress(from));
InternetAddress[] address = {new InternetAddress(to)};
msg.setRecipients(Message.RecipientType.TO, address);
msg.setSubject("Test E-Mail through Java");
msg.setSentDate(new Date());
// Set message content
msg.setText("This is a test of sending a " +
"plain text e-mail through Java.\n" +
"Here is line 2.");
//Send the message
Transport.send(msg);
}
catch (MessagingException mex) {
// Prints all nested (chained) exceptions as well
System.out.println("in catch block");
mex.printStackTrace();
}
}
}//End of class
Here's the errors:
221 2.0.0 closing connection d1sm3094152pbj.24
in catch block
com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.0 Must issue a STARTTLS command first. d1sm3094152pbj.24
at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2057)
at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1580)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1097)
at javax.mail.Transport.send0(Transport.java:195)
at javax.mail.Transport.send(Transport.java:124)
at mypackage.Sendmail.main(Sendmail.java:48)
Gmail only supports SMTP over SSL/TLS.
Add
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
You also need to login to the server:
props.put("mail.smtp.host", "smtp.gmail.com");
Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("username", "password");
}
});
A simple google search for "javamail gmail" will yield many example of how to use JavaMail with GMail, like this one. Google also has a configuration page listing the connection configuration that you'll need so you can double check the settings.
This URL May help:
http://sbtourist.blogspot.com/2007/10/javamail-and-gmail-its-all-about.html
It looks like the server is expecting SSL. There are several other questions on here where people are also trying to send mail through Gmail using Java, I recommend taking a look at them.
How can I send an email by Java application using GMail, Yahoo, or Hotmail?
Must issue a STARTTLS command first. Sending email with Java and Google Apps