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Java - Sending Email

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To ship an east-mail using your Java Application is simple enough simply to commencement with yous should take JavaMail API and Coffee Activation Framework (JAF) installed on your machine.

• Y'all can download latest version of JavaMail (Version 1.ii) from Java's standard website.

• You can download latest version of JAF (Version 1.1.1) from Java's standard website.

Download and unzip these files, in the newly created top level directories you lot will notice a number of jar files for both the applications. You need to add mail.jar and activation.jar files in your CLASSPATH.

Send a Simple Due east-mail

Hither is an example to send a simple electronic mail from your machine. It is assumed that your localhost is connected to the Net and capable enough to transport an e-mail.

Example

// File Name SendEmail.java  import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*;  public class SendEmail {     public static void main(String [] args) {           // Recipient's email ID needs to be mentioned.       String to = "abcd@gmail.com";        // Sender's electronic mail ID needs to exist mentioned       String from = "spider web@gmail.com";        // Assuming yous are sending email from localhost       String host = "localhost";        // Get system properties       Properties properties = System.getProperties();        // Setup mail server       backdrop.setProperty("mail.smtp.host", host);        // Get the default Session object.       Session session = Session.getDefaultInstance(backdrop);        endeavor {          // 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(Bulletin.RecipientType.TO, new InternetAddress(to));           // Set Subject area: header field          bulletin.setSubject("This is the Field of study Line!");           // Now set the bodily message          message.setText("This is bodily message");           // Ship message          Transport.send(message);          Arrangement.out.println("Sent bulletin successfully....");       } catch (MessagingException mex) {          mex.printStackTrace();       }    } }        

Compile and run this program to send a simple electronic mail −

Output

$ java SendEmail Sent bulletin successfully....        

If you want to ship an email to multiple recipients then the post-obit methods would be used to specify multiple email IDs −

void addRecipients(Message.RecipientType type, Accost[] addresses)    throws MessagingException        

Hither is the description of the parameters −

• blazon − This would be set to TO, CC or BCC. Hither CC represents Carbon Copy and BCC represents Blackness Carbon Copy. Example: Message.RecipientType.TO

• addresses − This is an array of e-mail ID. You would need to utilize InternetAddress() method while specifying email IDs.

Ship an HTML Eastward-mail

Hither is an case to transport an HTML e-mail from your machine. Here it is causeless that your localhost is connected to the Internet and capable plenty to transport an e-mail.

This case is very similar to the previous i, except here nosotros are using setContent() method to set content whose second statement is "text/html" to specify that the HTML content is included in the message.

Using this example, you tin can send as big equally HTML content you like.

Example

// File Proper noun SendHTMLEmail.java  import coffee.util.*; import javax.mail.*; import javax.mail.net.*; import javax.activation.*;  public course SendHTMLEmail {     public static void chief(Cord [] args) {       // Recipient's electronic mail ID needs to exist mentioned.       String to = "abcd@gmail.com";        // Sender's e-mail ID needs to be mentioned       String from = "web@gmail.com";        // Assuming you are sending email from localhost       String host = "localhost";        // Get system properties       Properties backdrop = Arrangement.getProperties();        // Setup mail server       properties.setProperty("postal service.smtp.host", host);        // Get the default Session object.       Session session = Session.getDefaultInstance(properties);        try {          // Create a default MimeMessage object.          MimeMessage message = new MimeMessage(session);           // Prepare 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 Discipline Line!");           // Send the actual HTML message, as big as yous similar          bulletin.setContent("<h1>This is actual bulletin</h1>", "text/html");           // Transport bulletin          Send.send(message);          System.out.println("Sent message successfully....");       } grab (MessagingException mex) {          mex.printStackTrace();       }    } }        

Compile and run this program to send an HTML e-mail −

Output

$ java SendHTMLEmail Sent bulletin successfully....        

Ship Attachment in Email

Here is an instance to ship an e-mail with attachment from your machine. Here information technology is causeless that your localhost is connected to the internet and capable enough to ship an e-post.

Case

// File Name SendFileEmail.coffee  import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*;  public form SendFileEmail {     public static void main(String [] args) {            // Recipient's email ID needs to be mentioned.       String to = "abcd@gmail.com";        // Sender'southward email ID needs to be mentioned       String from = "web@gmail.com";        // Bold you are sending e-mail from localhost       String host = "localhost";        // Get system properties       Properties backdrop = Organization.getProperties();        // Setup mail server       properties.setProperty("mail.smtp.host", host);        // Get the default Session object.       Session session = Session.getDefaultInstance(properties);        try {          // Create a default MimeMessage object.          MimeMessage bulletin = new MimeMessage(session);           // Set From: header field of the header.          message.setFrom(new InternetAddress(from));           // Set To: header field of the header.          message.addRecipient(Bulletin.RecipientType.TO,new InternetAddress(to));           // Set Subject area: header field          message.setSubject("This is the Subject Line!");           // Create the bulletin office           BodyPart messageBodyPart = new MimeBodyPart();           // Make full the message          messageBodyPart.setText("This is message torso");                    // Create a multipar bulletin          Multipart multipart = new MimeMultipart();           // Prepare text message part          multipart.addBodyPart(messageBodyPart);           // Part two is attachment          messageBodyPart = new MimeBodyPart();          Cord filename = "file.txt";          DataSource source = new FileDataSource(filename);          messageBodyPart.setDataHandler(new DataHandler(source));          messageBodyPart.setFileName(filename);          multipart.addBodyPart(messageBodyPart);           // Send the complete bulletin parts          message.setContent(multipart );           // Send message          Ship.send(message);          System.out.println("Sent bulletin successfully....");       } catch (MessagingException mex) {          mex.printStackTrace();       }    } }        

Compile and run this programme to send an HTML email −

Output

$ coffee SendFileEmail Sent message successfully....        

User Authentication Part

If it is required to provide user ID and Password to the eastward-mail server for hallmark purpose, and so you can set these backdrop as follows −

props.setProperty("mail service.user", "myuser"); props.setProperty("mail.password", "mypwd");        

Residue of the email sending mechanism would remain as explained above.

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Source: https://www.tutorialspoint.com/java/java_sending_email.htm

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