EMail servlet

[Nishant Jindal]

Hello Friends.
I want to write email servlet using JavaMail package.i want to send this email from localhost(which is not a server)to another
computer in a LAN using SMTP.If it is possible how to do that How to do that.Give me in details.
Thanks in advance

[Sandeep Jain]

Hi ,
There are two ways through which you can send a mail ,
1) using the smtp Client
2) using javamail package.
If u wanna make use of java mail package, the code is as follows

import javax.mail.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.internet.*;
public class SendingMail2 extends HttpServlet
{
public void service(HttpServletRequest req,HttpServletResponse res)
{
try
{
res.setContentType("text/html");
String from = "uremailid eg [email protected] ";
String to = "recipents email id eg [email protected]";
String subject = "the subject u wanna send ";
String cc="cc addresses "
String bcc="Bcc address";
String text="the matter that u wanna send ";
java.util.Properties prop = System.getProperties();
prop.put("mail.smtp.host","mail.yahoo.com");
Session ses = Session.getInstance(prop,null);
MimeMessage message = new MimeMessage(ses);
try
{
Address fromAddress = new InternetAddress(from);
message.setFrom(fromAddress);
message.setSubject(subject);
Address[] toAddress = InternetAddress.parse(to);
Address[] cc_address=InternetAddress.parse(cc);
Address[] bcc_address=InternetAddress.parse(bcc);
message.setRecipients(Message.RecipientType.TO,toAddress);
message.setRecipients(Message.RecipientType.CC,cc_address);
message.setRecipients(Message.RecipientType.BCC,bcc_address);
message.setSentDate(new java.util.Date());
message.setText(text);
Transport.send(message);
}
catch(Exception e)
{
System.out.println("Problem " + e);
}
}
catch(Exception e)
{
}
}
};


------------------
Sandeep Jain

[Sandeep Jain]

If u want to make use of smtp in the servlet

import sum.net.smtp.*;
you can write the following Code in ur service method of your servlet

SmtpClient smClient=new SmtpClient("MmailHostName");
//mailHostName can be like 'mail.webveda.com'
smClient.from("yourEmailAddress");
smClient.to("recipient email address");
PrintStream ps=smClient.startMessage();
ps.println("from "+ "yourEmailAddress");
ps.println("from "+ "recipient email address");
ps.println("write the subject that u wanna write ");
smClient.closeServer();

------------------
Sandeep Jain

[lokesh reddy]

Hi Nishant,
Here is the code u asked for
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.*;
import javax.mail.event.*;
import javax.mail.internet.*;
import javax.activation.*;
public class MailSender extends HttpServlet
{
private final String MAIL_HOST="mail.sigmaonline.net";
public void doGet(HttpServletRequest req,HttpServletResponse res) throws ServletException,IOException
{
res.setContentType("text/html");
PrintWriter out=res.getWriter();

String from=req.getParameter("from");
String to=req.getParameter("to");
String subject=req.getParameter("subject");
String text=req.getParameter("text");
Properties prop=System.getProperties();
prop.put("mail.smtp.host",MAIL_HOST);
prop.put("mail.from",from);
Session session=Session.getDefaultInstance(prop,null);
try
{
Message message=new MimeMessage(session);
InternetAddress address[]={new InternetAddress(to)};
message.setRecipients(Message.RecipientType.TO,address);
message.setFrom(new InternetAddress(from));
message.setTo(to);
message.setSubject(subject);
message.setContent("text/plain",text);
Transport transport=session.getTransport(address[0]);
transport.addConnectionListener(new ConnectionHandler());
transport.addTransportListener(new TransportHandler());
transport.connect();
transport.sendMessage(message,address);
}
catch(Exception ex)
{
getServletContext().log(ex);
}
}
class ConnectionHandler extends ConnectionAdapter
{
public void opened(ConnectionEvent ce)
{
System.out.println("Connection Opened");
}
public void disconnected(ConnectionEvent ce)
{
System.out.println("Connection disconnected");
}
public void closed(ConnectionEvent ce)
{
System.out.println("Connection closed");
}
}
class TransportHandler extends TransportAdapter
{
public void messageTransferred(TransportEvent te)
{
System.out.println("Message Delivered");
}
public void messagePartiallyTransferred(TransportEvent te)
{
System.out.println("Message Partially Transferred");
}
public void messageNotTransferred(TransportEvent te)
{
System.out.println("Message Not Transferred");
}
}
}
Nishant, i dint tested this code, but i am sure that it works well, if there is any problem with this code please let me know it.
Loke.

[jaya raman]

Hi Lokesh,
I tried ur program to send emails using JavaMail but encountered the following exception:
javax.mail.MessagingException:could not connect to SMTP host :mail.yahoo.com, port:25,
java.net.NoRouteToHostException: Host Unreachable: no further information.
I used javawebserver2.0.
Could u pls. help me on this regard. Is anything wrong in the following mail host:
private final String MAIL_HOST="mail.yahoo.com";
kindly suggest me.
regards,
jayaraman
mailid:[email protected]

Originally posted by lokesh reddy:
Hi Nishant,
Here is the code u asked for
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.*;
import javax.mail.event.*;
import javax.mail.internet.*;
import javax.activation.*;
public class MailSender extends HttpServlet
{
private final String MAIL_HOST="mail.sigmaonline.net";
public void doGet(HttpServletRequest req,HttpServletResponse res) throws ServletException,IOException
{
res.setContentType("text/html");
PrintWriter out=res.getWriter();

String from=req.getParameter("from");
String to=req.getParameter("to");
String subject=req.getParameter("subject");
String text=req.getParameter("text");
Properties prop=System.getProperties();
prop.put("mail.smtp.host",MAIL_HOST);
prop.put("mail.from",from);
Session session=Session.getDefaultInstance(prop,null);
try
{
Message message=new MimeMessage(session);
InternetAddress address[]={new InternetAddress(to)};
message.setRecipients(Message.RecipientType.TO,address);
message.setFrom(new InternetAddress(from));
message.setTo(to);
message.setSubject(subject);
message.setContent("text/plain",text);
Transport transport=session.getTransport(address[0]);
transport.addConnectionListener(new ConnectionHandler());
transport.addTransportListener(new TransportHandler());
transport.connect();
transport.sendMessage(message,address);
}
catch(Exception ex)
{
getServletContext().log(ex);
}
}
class ConnectionHandler extends ConnectionAdapter
{
public void opened(ConnectionEvent ce)
{
System.out.println("Connection Opened");
}
public void disconnected(ConnectionEvent ce)
{
System.out.println("Connection disconnected");
}
public void closed(ConnectionEvent ce)
{
System.out.println("Connection closed");
}
}
class TransportHandler extends TransportAdapter
{
public void messageTransferred(TransportEvent te)
{
System.out.println("Message Delivered");
}
public void messagePartiallyTransferred(TransportEvent te)
{
System.out.println("Message Partially Transferred");
}
public void messageNotTransferred(TransportEvent te)
{
System.out.println("Message Not Transferred");
}
}
}
Nishant, i dint tested this code, but i am sure that it works well, if there is any problem with this code please let me know it.
Loke.

[jaya raman]

Hi Sandeep,
I tried ur program to send emails using JavaMail but encountered the following exception:
javax.mail.MessagingException:could not connect to SMTP host :mail.yahoo.com, port:25,
java.net.NoRouteToHostException: Host Unreachable: no further information.
I used javawebserver2.0.
Could u pls. help me on this regard. Is anything wrong in the following piece of code(mail host):
prop.put("mail.smtp.host","mail.rediff.com");
kindly suggest me.
rgds,
jayaraman

Originally posted by Sandeep Jain:
Hi ,
There are two ways through which you can send a mail ,
1) using the smtp Client
2) using javamail package.
If u wanna make use of java mail package, the code is as follows

import javax.mail.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.internet.*;
public class SendingMail2 extends HttpServlet
{
public void service(HttpServletRequest req,HttpServletResponse res)
{
try
{
res.setContentType("text/html");
String from = "uremailid eg [email protected] ";
String to = "recipents email id eg [email protected]";
String subject = "the subject u wanna send ";
String cc="cc addresses "
String bcc="Bcc address";
String text="the matter that u wanna send ";
java.util.Properties prop = System.getProperties();
prop.put("mail.smtp.host","mail.yahoo.com");
Session ses = Session.getInstance(prop,null);
MimeMessage message = new MimeMessage(ses);
try
{
Address fromAddress = new InternetAddress(from);
message.setFrom(fromAddress);
message.setSubject(subject);
Address[] toAddress = InternetAddress.parse(to);
Address[] cc_address=InternetAddress.parse(cc);
Address[] bcc_address=InternetAddress.parse(bcc);
message.setRecipients(Message.RecipientType.TO,toAddress);
message.setRecipients(Message.RecipientType.CC,cc_address);
message.setRecipients(Message.RecipientType.BCC,bcc_address);
message.setSentDate(new java.util.Date());
message.setText(text);
Transport.send(message);
}
catch(Exception e)
{
System.out.println("Problem " + e);
}
}
catch(Exception e)
{
}
}
};

[jaya raman]

Hi Sandeep,
I tried ur program to send emails using JavaMail but encountered the following exception:
javax.mail.MessagingException:could not connect to SMTP host :mail.yahoo.com, port:25,
java.net.NoRouteToHostException: Host Unreachable: no further information.
I used javawebserver2.0.
Could u pls. help me on this regard. Is anything wrong in the following piece of code(mail host):
prop.put("mail.smtp.host","mail.yahoo.com");
kindly suggest me.
rgds,
jayaraman

Originally posted by Sandeep Jain:
Hi ,
There are two ways through which you can send a mail ,
1) using the smtp Client
2) using javamail package.
If u wanna make use of java mail package, the code is as follows

import javax.mail.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.internet.*;
public class SendingMail2 extends HttpServlet
{
public void service(HttpServletRequest req,HttpServletResponse res)
{
try
{
res.setContentType("text/html");
String from = "uremailid eg [email protected] ";
String to = "recipents email id eg [email protected]";
String subject = "the subject u wanna send ";
String cc="cc addresses "
String bcc="Bcc address";
String text="the matter that u wanna send ";
java.util.Properties prop = System.getProperties();
prop.put("mail.smtp.host","mail.yahoo.com");
Session ses = Session.getInstance(prop,null);
MimeMessage message = new MimeMessage(ses);
try
{
Address fromAddress = new InternetAddress(from);
message.setFrom(fromAddress);
message.setSubject(subject);
Address[] toAddress = InternetAddress.parse(to);
Address[] cc_address=InternetAddress.parse(cc);
Address[] bcc_address=InternetAddress.parse(bcc);
message.setRecipients(Message.RecipientType.TO,toAddress);
message.setRecipients(Message.RecipientType.CC,cc_address);
message.setRecipients(Message.RecipientType.BCC,bcc_address);
message.setSentDate(new java.util.Date());
message.setText(text);
Transport.send(message);
}
catch(Exception e)
{
System.out.println("Problem " + e);
}
}
catch(Exception e)
{
}
}
};

[lokesh reddy]

Hi Jayaram,
I think u r behind a firewall or a proxy server.
Any way, here i would like to provide some alternate ways to run your program with out any errors.
Try to add this code after initializing Properties object.
prop.put("http.proxyHost","YOUR PROXY SERVER NAME");
prop.put("http.proxyPort","PORT NO ON WHICH SERVER LISTENS");
Replace the Proxy Server Name and Port with appropriate strings.
If this too doesn't work, then try to change HOST_NAME.
You can try with the following HOST_NAMES.
1) mail.sigmaonline.net
2) mail.webveda.com
I hope you find this info useful.
Bye.
Loke.

[milan doshi]

Hi Lokesh, Sandeep,Jayaram.
Your explainations are very helpful. Thanx for the same.
Kindly please tell me what is the significance of session object.
Regards

[Anonymous]

Hi Lokesh,
Thanks for providing an explanation for sending the mail from the machines behind the firewall or proxy.
I tried the same thru JSP.But the mail is not reaching the destination even though I am getting the msg as mail sent.
Any settings r required thru policy tools to enable routing the msg thru proxy settings.
If so, Pls give me the details.
Bye,
Manish

[sham]

Hi Loke,
Your coding was really useful to me. But i have one special requirement. Normally in the coding you are pre-fixing the MAIL HOST ADDRESS (e.g. mail.yahoo.com), whereas in my application i am getting the different mail addresses from the user (like yahoo, hotmail, usa.net, rediff etc). If this be case what consideration i should take in refining your code. Kindly advise me in this regard at the earliest.
Tks a lot
Jowsaki

Originally posted by lokesh reddy:
Hi Nishant,
Here is the code u asked for
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.*;
import javax.mail.event.*;
import javax.mail.internet.*;
import javax.activation.*;
public class MailSender extends HttpServlet
{
private final String MAIL_HOST="mail.sigmaonline.net";
public void doGet(HttpServletRequest req,HttpServletResponse res) throws ServletException,IOException
{
res.setContentType("text/html");
PrintWriter out=res.getWriter();

String from=req.getParameter("from");
String to=req.getParameter("to");
String subject=req.getParameter("subject");
String text=req.getParameter("text");
Properties prop=System.getProperties();
prop.put("mail.smtp.host",MAIL_HOST);
prop.put("mail.from",from);
Session session=Session.getDefaultInstance(prop,null);
try
{
Message message=new MimeMessage(session);
InternetAddress address[]={new InternetAddress(to)};
message.setRecipients(Message.RecipientType.TO,address);
message.setFrom(new InternetAddress(from));
message.setTo(to);
message.setSubject(subject);
message.setContent("text/plain",text);
Transport transport=session.getTransport(address[0]);
transport.addConnectionListener(new ConnectionHandler());
transport.addTransportListener(new TransportHandler());
transport.connect();
transport.sendMessage(message,address);
}
catch(Exception ex)
{
getServletContext().log(ex);
}
}
class ConnectionHandler extends ConnectionAdapter
{
public void opened(ConnectionEvent ce)
{
System.out.println("Connection Opened");
}
public void disconnected(ConnectionEvent ce)
{
System.out.println("Connection disconnected");
}
public void closed(ConnectionEvent ce)
{
System.out.println("Connection closed");
}
}
class TransportHandler extends TransportAdapter
{
public void messageTransferred(TransportEvent te)
{
System.out.println("Message Delivered");
}
public void messagePartiallyTransferred(TransportEvent te)
{
System.out.println("Message Partially Transferred");
}
public void messageNotTransferred(TransportEvent te)
{
System.out.println("Message Not Transferred");
}
}
}
Nishant, i dint tested this code, but i am sure that it works well, if there is any problem with this code please let me know it.
Loke.

[Frank Carver]

"sham",
The Java Ranch has thousands of visitors every week, many with surprisingly similar names. To avoid confusion we have a naming convention, described at http://www.javaranch.com/name.jsp . We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please log in with a new name which meets the requirements.
Thanks.

[Sham Jowsaki]

Hi Loke,
Your coding was really useful to me. But i have one special requirement. Normally in the coding you are pre-fixing the MAIL HOST ADDRESS (e.g. mail.yahoo.com), whereas in my application i am getting the different mail addresses from the user (like yahoo, hotmail, usa.net, rediff etc). If this be case what consideration i should take in refining your code. Kindly advise me in this regard at the earliest.
Tks a lot
Jowsaki

Originally posted by lokesh reddy:
Hi Jayaram,
I think u r behind a firewall or a proxy server.
Any way, here i would like to provide some alternate ways to run your program with out any errors.
Try to add this code after initializing Properties object.
prop.put("http.proxyHost","YOUR PROXY SERVER NAME");
prop.put("http.proxyPort","PORT NO ON WHICH SERVER LISTENS");
Replace the Proxy Server Name and Port with appropriate strings.
If this too doesn't work, then try to change HOST_NAME.
You can try with the following HOST_NAMES.
1) mail.sigmaonline.net
2) mail.webveda.com
I hope you find this info useful.
Bye.
Loke.

[Rajul King]

Lokesh and Sandeep,
My mail server needs authentication to send the mail. It generates error 353. I know the valid userID and Password. How do I supply the usernama and password. Any idea.
thanks,

[ramon diego]

There is a setText method in the javax.mail.message class, but no getText. Can anyone tell me why and how to get the message text of an email with the java mail api?

[Paul Sturrock]

There is a getContent method (of MimeMessage) which gets you the content of the message as an Object.