Mixing
JavaxException Unknown SMTP host Exception: mail.gmail.com
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
0
I am trying to send mail using Java code . The code is working fine when running on my personal PC . But on office network the exception of unknown SMTP host is appearing. Also my office pc is not able to ping smtp.gmail.com. PC firewall is closed as well.
Is there any other way to establish the connection? I am also providing my code below for reference.
mport javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.mail.Authenticator;
public class otp {
String d_email = "email@gmail.com",
d_password = "password",
d_uname="uname",//your email password
d_host = "mail.outlook.com",
d_port = "587",
m_to = "target@gmail.com", // Target email address
m_subject = "Testing Mail programs",
m_text = "Hey, this is a test email.";
public otp() {
Properties props = new Properties();
props.put("mail.smtp.user", d_email);
props.put("mail.smtp.host", d_host);
props.put("mail.smtp.port", d_port);
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.socketFactory.port", d_port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
try {
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props,auth);
session.setDebug(true);
MimeMessage msg = new MimeMessage(session);
msg.setText(m_text);
msg.setSubject(m_subject);
System.out.println(1);
msg.setFrom(new InternetAddress(d_email));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
System.out.println(3);
Transport transport = session.getTransport("smtp");
transport.connect(d_host, Integer.valueOf(d_port),d_uname , d_password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
Transport.send(msg);
System.out.println("Message Sent succesfully");
} catch (Exception mex) {
mex.printStackTrace();
}
}
public static void main(String args) {
otp blah = new otp();
}
private class SMTPAuthenticator extends javax.mail.Authenticator {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(d_email, d_password);
}
}
}
java jsp ide
asked Jan 3 at 7:26
KritikaKritika
11
add a comment |
0
I am trying to send mail using Java code . The code is working fine when running on my personal PC . But on office network the exception of unknown SMTP host is appearing. Also my office pc is not able to ping smtp.gmail.com. PC firewall is closed as well.
Is there any other way to establish the connection? I am also providing my code below for reference.
mport javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.mail.Authenticator;
public class otp {
String d_email = "email@gmail.com",
d_password = "password",
d_uname="uname",//your email password
d_host = "mail.outlook.com",
d_port = "587",
m_to = "target@gmail.com", // Target email address
m_subject = "Testing Mail programs",
m_text = "Hey, this is a test email.";
public otp() {
Properties props = new Properties();
props.put("mail.smtp.user", d_email);
props.put("mail.smtp.host", d_host);
props.put("mail.smtp.port", d_port);
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.socketFactory.port", d_port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
try {
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props,auth);
session.setDebug(true);
MimeMessage msg = new MimeMessage(session);
msg.setText(m_text);
msg.setSubject(m_subject);
System.out.println(1);
msg.setFrom(new InternetAddress(d_email));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
System.out.println(3);
Transport transport = session.getTransport("smtp");
transport.connect(d_host, Integer.valueOf(d_port),d_uname , d_password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
Transport.send(msg);
System.out.println("Message Sent succesfully");
} catch (Exception mex) {
mex.printStackTrace();
}
}
public static void main(String args) {
otp blah = new otp();
}
private class SMTPAuthenticator extends javax.mail.Authenticator {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(d_email, d_password);
}
}
}
java jsp ide
asked Jan 3 at 7:26
KritikaKritika
11
add a comment |
0
0
0
I am trying to send mail using Java code . The code is working fine when running on my personal PC . But on office network the exception of unknown SMTP host is appearing. Also my office pc is not able to ping smtp.gmail.com. PC firewall is closed as well.
Is there any other way to establish the connection? I am also providing my code below for reference.
mport javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.mail.Authenticator;
public class otp {
String d_email = "email@gmail.com",
d_password = "password",
d_uname="uname",//your email password
d_host = "mail.outlook.com",
d_port = "587",
m_to = "target@gmail.com", // Target email address
m_subject = "Testing Mail programs",
m_text = "Hey, this is a test email.";
public otp() {
Properties props = new Properties();
props.put("mail.smtp.user", d_email);
props.put("mail.smtp.host", d_host);
props.put("mail.smtp.port", d_port);
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.socketFactory.port", d_port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
try {
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props,auth);
session.setDebug(true);
MimeMessage msg = new MimeMessage(session);
msg.setText(m_text);
msg.setSubject(m_subject);
System.out.println(1);
msg.setFrom(new InternetAddress(d_email));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
System.out.println(3);
Transport transport = session.getTransport("smtp");
transport.connect(d_host, Integer.valueOf(d_port),d_uname , d_password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
Transport.send(msg);
System.out.println("Message Sent succesfully");
} catch (Exception mex) {
mex.printStackTrace();
}
}
public static void main(String args) {
otp blah = new otp();
}
private class SMTPAuthenticator extends javax.mail.Authenticator {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(d_email, d_password);
}
}
}
java jsp ide
asked Jan 3 at 7:26
KritikaKritika
11
I am trying to send mail using Java code . The code is working fine when running on my personal PC . But on office network the exception of unknown SMTP host is appearing. Also my office pc is not able to ping smtp.gmail.com. PC firewall is closed as well.
Is there any other way to establish the connection? I am also providing my code below for reference.
mport javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.mail.Authenticator;
public class otp {
String d_email = "email@gmail.com",
d_password = "password",
d_uname="uname",//your email password
d_host = "mail.outlook.com",
d_port = "587",
m_to = "target@gmail.com", // Target email address
m_subject = "Testing Mail programs",
m_text = "Hey, this is a test email.";
public otp() {
Properties props = new Properties();
props.put("mail.smtp.user", d_email);
props.put("mail.smtp.host", d_host);
props.put("mail.smtp.port", d_port);
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.socketFactory.port", d_port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
try {
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props,auth);
session.setDebug(true);
MimeMessage msg = new MimeMessage(session);
msg.setText(m_text);
msg.setSubject(m_subject);
System.out.println(1);
msg.setFrom(new InternetAddress(d_email));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
System.out.println(3);
Transport transport = session.getTransport("smtp");
transport.connect(d_host, Integer.valueOf(d_port),d_uname , d_password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
Transport.send(msg);
System.out.println("Message Sent succesfully");
} catch (Exception mex) {
mex.printStackTrace();
}
}
public static void main(String args) {
otp blah = new otp();
}
private class SMTPAuthenticator extends javax.mail.Authenticator {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(d_email, d_password);
}
}
}
java jsp ide
java jsp ide
asked Jan 3 at 7:26
KritikaKritika
11
asked Jan 3 at 7:26
KritikaKritika
11
edited Jan 3 at 9:58
Kritika
asked Jan 3 at 7:26
KritikaKritika
11
asked Jan 3 at 7:26
KritikaKritika
11
asked Jan 3 at 7:26
KritikaKritika
11
11
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
0
I guess that you are behind the internal firewall/proxy of your office, it is very common to put the whole internal network of a company behind a central firewall or to check Outgoing/Incoming requests of the networks traffic a Dynamic Proxy Server.in that case, you can check it in the proxy settings of your pc.
internet explorer(or any browser)-> settings -> internet option -> Connections Tab -> LAN Settings.
for the granular analyses,please attach your code.
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
add a comment |
0
you are using a gmail account but you have provided a outlook host , try the following template:
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendEmailUsingGMailSMTP {
public static void main(String args) {
// Recipient's email ID needs to be mentioned.
String to = "xyz@gmail.com";//change accordingly
// Sender's email ID needs to be mentioned
String from = "abc@gmail.com";//change accordingly
final String username = "abc";//change accordingly
final String password = "*****";//change accordingly
// >> gmail host
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(from));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
// Set Subject: header field
message.setSubject("Testing Subject");
// Now set the actual message
message.setText("Hello, this is sample for to check send "
+ "email using JavaMailAPI ");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}enter code here
}
}
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
I guess that you are behind the internal firewall/proxy of your office, it is very common to put the whole internal network of a company behind a central firewall or to check Outgoing/Incoming requests of the networks traffic a Dynamic Proxy Server.in that case, you can check it in the proxy settings of your pc.
internet explorer(or any browser)-> settings -> internet option -> Connections Tab -> LAN Settings.
for the granular analyses,please attach your code.
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
add a comment |
0
I guess that you are behind the internal firewall/proxy of your office, it is very common to put the whole internal network of a company behind a central firewall or to check Outgoing/Incoming requests of the networks traffic a Dynamic Proxy Server.in that case, you can check it in the proxy settings of your pc.
internet explorer(or any browser)-> settings -> internet option -> Connections Tab -> LAN Settings.
for the granular analyses,please attach your code.
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
add a comment |
0
0
0
I guess that you are behind the internal firewall/proxy of your office, it is very common to put the whole internal network of a company behind a central firewall or to check Outgoing/Incoming requests of the networks traffic a Dynamic Proxy Server.in that case, you can check it in the proxy settings of your pc.
internet explorer(or any browser)-> settings -> internet option -> Connections Tab -> LAN Settings.
for the granular analyses,please attach your code.
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
I guess that you are behind the internal firewall/proxy of your office, it is very common to put the whole internal network of a company behind a central firewall or to check Outgoing/Incoming requests of the networks traffic a Dynamic Proxy Server.in that case, you can check it in the proxy settings of your pc.
internet explorer(or any browser)-> settings -> internet option -> Connections Tab -> LAN Settings.
for the granular analyses,please attach your code.
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
answered Jan 3 at 7:57
Mohammad AlaviMohammad Alavi
1
1
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
add a comment |
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
please check the code attached below. Thanks :)
– Kritika
Jan 3 at 9:59
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
i tried to disable the proxy still iasm facing the same error message of Unknown SMTP host: smtp.gmail.com;
– Kritika
Jan 3 at 10:08
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
normally you cannot easily disable a dynamic-proxy on your local pc,basically such a system configuration is managed by system admin
– Mohammad Alavi
Jan 4 at 13:06
add a comment |
0
you are using a gmail account but you have provided a outlook host , try the following template:
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendEmailUsingGMailSMTP {
public static void main(String args) {
// Recipient's email ID needs to be mentioned.
String to = "xyz@gmail.com";//change accordingly
// Sender's email ID needs to be mentioned
String from = "abc@gmail.com";//change accordingly
final String username = "abc";//change accordingly
final String password = "*****";//change accordingly
// >> gmail host
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(from));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
// Set Subject: header field
message.setSubject("Testing Subject");
// Now set the actual message
message.setText("Hello, this is sample for to check send "
+ "email using JavaMailAPI ");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}enter code here
}
}
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
add a comment |
0
you are using a gmail account but you have provided a outlook host , try the following template:
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendEmailUsingGMailSMTP {
public static void main(String args) {
// Recipient's email ID needs to be mentioned.
String to = "xyz@gmail.com";//change accordingly
// Sender's email ID needs to be mentioned
String from = "abc@gmail.com";//change accordingly
final String username = "abc";//change accordingly
final String password = "*****";//change accordingly
// >> gmail host
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(from));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
// Set Subject: header field
message.setSubject("Testing Subject");
// Now set the actual message
message.setText("Hello, this is sample for to check send "
+ "email using JavaMailAPI ");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}enter code here
}
}
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
add a comment |
0
0
0
you are using a gmail account but you have provided a outlook host , try the following template:
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendEmailUsingGMailSMTP {
public static void main(String args) {
// Recipient's email ID needs to be mentioned.
String to = "xyz@gmail.com";//change accordingly
// Sender's email ID needs to be mentioned
String from = "abc@gmail.com";//change accordingly
final String username = "abc";//change accordingly
final String password = "*****";//change accordingly
// >> gmail host
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(from));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
// Set Subject: header field
message.setSubject("Testing Subject");
// Now set the actual message
message.setText("Hello, this is sample for to check send "
+ "email using JavaMailAPI ");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}enter code here
}
}
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
you are using a gmail account but you have provided a outlook host , try the following template:
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendEmailUsingGMailSMTP {
public static void main(String args) {
// Recipient's email ID needs to be mentioned.
String to = "xyz@gmail.com";//change accordingly
// Sender's email ID needs to be mentioned
String from = "abc@gmail.com";//change accordingly
final String username = "abc";//change accordingly
final String password = "*****";//change accordingly
// >> gmail host
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(from));
// Set To: header field of the header.
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
// Set Subject: header field
message.setSubject("Testing Subject");
// Now set the actual message
message.setText("Hello, this is sample for to check send "
+ "email using JavaMailAPI ");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException e) {
throw new RuntimeException(e);
}enter code here
}
}
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
answered Jan 4 at 10:18
Mohammad AlaviMohammad Alavi
1
1
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