R4R provide basic JavaMail Tutorials concept with
JavaMail Examples .
Through R4R you can develop JavaMail programming concept. R4R provide
JavaMail Interview Questions with answers.R4R provide
JavaMail Languages study materials in easy way.
JAVAMAIL
Javamail is a Java API which is used to send and receive
email through SMTP,.POP3 and IMAP . JavaMail
is built into the Java EE platform, but also provides an optional package for use in Java SE. The
JavaMail API is a platform-independent and protocol-independent framework
which is used to build mail and appliction messaging. JavaMail is a set of
abstract classes that create a framework for sending, receiving and handling
e-mail, along with implementations of those classes. IMAP and SMTP allowing you
to get started immediately on sending and receiving mail. The
javax.mail package defines classes that are common to all mail
systems. Javamail can be used to create personal mail filters,
simple mailing lists and customized personal mail applications, as well as to
add full e-mail capabilities to an Enterprise application or create a
full-fledged e-mail client.
ROLE OF SMTP, IMAP ,AND POP3
SMTP Simple Mail Transfer Protocol :-- allows two
mail servers to communicate using a simple language, and provides a step-by-step
protocol for exchanging information.
IMAP Internet Mail Access Protocol:-It is
client/server mail protocol. SMTP delivers mail to a central location,
where the user can either log in and read it directly or use a client/server mail protocol to
read it remotely. IMAP is keep mail on a remote server and let the user interact
with it there.
POP3 Post Office Protocol:-POP3 is forward a user's mail to a
single machine, where the user can go offline and read it, if necessary. IPOP3
is mainly used when connection is slow.
CLASSES OF JAVAMAIL API
JavaMail API contains number of classes few important of them
are listed below
javax.mail.Session:-it is the top-level class of
javax.mail API its most commonly used methods provide the ability to control and
load the classes that represent the service provider implementations (SPI) for various
mail protocols
javax.mail.Store:-it is implemented by a
service provider, such as a POP Mail implementation developer. and allows
for read, write, monitor, and search access for a particular mail protocol
javax.mail.Transport:-This class send a message over a specific protocol.
javax.mail.Folder:-It gives hierarchical
organization to mail messages and provides access to e-mail messages in the form
of javax.mail.Message class objects.
javax.mail.Message:-It models all the
details of an actual e-mail message, such as the subject line, sender/recipient
e-mail address, sent date, and so on.
USES OF JAVAMAIL API
Possible uses of Javamail API are following.
-
Javamail API is used to send email from any type of java
application.
-
It is used to read ,compose, and sending email.
-
The one of the important use of Javamail API is to create GUI
mail client.
-
It also used to send Email from java stored procedures and one of the important use of it ,is it help to search
messages.
-
It is important to install javamail API to work with it.
EXAMPLE
This example is create to send message
1.import the package javax.mail and then sub package
javax.mail.internet.
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
2.create a class and declare the host address ,source address and destination address.as
public class SendMail {
public static void main(String args[]) throws Exception {
String host = "192.168.10.205";
String from = "r4r@localhost";
String to = "r4r@localhost";
3.Get system properties as: Properties properties = System.getProperties();
4.Setup mail server as:
properties.setProperty("mail.smtp.host", host);
5. Get the default Session object. as:
Session session = Session.getDefaultInstance(properties);
6. Create a default MimeMessage object. as:
MimeMessage message = new MimeMessage(session);
7 Set the RFC
822 "From" header field using the value of the InternetAddress.getLocalAddress
method. as:
message.setFrom(new InternetAddress(from));
8.Add the given addresses to the specified recipient type as:
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
9.Set the "Subject" header field as:
message.setSubject("hello..!");
10. Sets the
given String as this part's content,with a MIME type of "text/plain" as:
message.setText("Hello ......");
11.Send message
Transport.send(message);
System.out.println("Message is Send.....");
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