I am following code to send mail without authentication.The java code described as follows.
final String frommail = "a#g.com"
String toEmail = "b#gmail.com";
Properties props = new Properties();
props.put("mail.smtp.auth", PropertiesLoader.getPropertiesValue(MAIL_SMTP_AUTH));
props.put("mail.smtp.host", PropertiesLoader.getPropertiesValue(MAIL_SMTP_HOST));
props.put("mail.smtp.port", PropertiesLoader.getPropertiesValue(MAIL_SMTP_PORT));
//enable authentication
props.put(MAIL_SMTP_ENABLE, PropertiesLoader.getPropertiesValue(MAIL_SMTP_ENABLE));
Session session = Session.getInstance(props);
try {
MimeMessage msg = new MimeMessage(session);
//set message headers
msg.addHeader("Content-type", "text/HTML; charset=UTF-8");
msg.addHeader("format", "flowed");
msg.addHeader("Content-Transfer-Encoding", "8bit");
msg.setFrom(new InternetAddress(frommail, EMAIL_FROM_NAME));
// msg.setReplyTo(InternetAddress.parse(frommail, false));
msg.setSubject(subject, "UTF-8");
msg.setContent(body, MAIL_CONTENT_TYPE);
msg.setSentDate(new Date());
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse("pramilkprince#rediffmail.com", false));
Transport.send(msg);
logger.info("EMail Sent Successfully!!");
But when sending mail, it throws following exception
com.sun.mail.smtp.SMTPAddressFailedException: 554 5.7.1
: Relay access denied at
com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1862) at
com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1118)
at javax.mail.Transport.send0(Transport.java:254) at
javax.mail.Transport.send(Transport.java:124) at
com.gtl.gcc.util.SendEmail.sendEmailFromInfo(SendEmail.java:195) at
com.gtl.gcc.util.SendEmail.createMailBodyAndSendMailForUpdateKYC(SendEmail.java:144)
if any one have any idea about this please help
If you want to send mail without authentication, you need to run your own SMTP server. If it's on the public internet, it will be flooded with spam before you can use it yourself. If it's on your private intranet, you can make it work. Gmail, for example, is definitely not going to let you send mail without authenticating. Note that this has absolutely nothing at all to do with use of the JavaMail API.
As #BillShannon pointed out, sending through most SMTP servers will require authentication due to SPAM issues.
However, the MX Gateways for any domain are required to be open on TCP 25 and for emails without authentication.
While working on Java send email avoiding smtp relay server and send directly to MX server I created a small example to use the target domain's MX server to directly address that.
As pointed out before: If your sending server does not reverse-DNS to the domain you're sending from, you'll most likely end up being blocked or directly classified as spam.
Good Luck
Related
We are trying to connect to Office365 over POP3 using OAUTH. We get the error "Protocol error. Connection is closed. 10" stacktrace mentioned below
javax.mail.AuthenticationFailedException: Protocol error. Connection is closed. 10
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:193)
at javax.mail.Service.connect(Service.java:342)
Below if the snipped of code we are usign to connect
Properties props = new Properties();
props.put("mail.pop3.ssl.enable", "true");
props.put("mail.pop3s.auth.mechanisms","XOAUTH2");
props.put("mail.debug", "true");
session = Session.getInstance(props);
final Store store = session.getStore("pop3s");
store.connect("outlook.office365.com", 995, userId, accessToken);
We are able to connect to Office using IMAP protocol over OAUTH. we tried this with jakarta-mail-1.6.5 and jakarta-mail-1.6.6 both but are unable to resolve the error. Please suggest if we are connecting wrongly or there is any properties missing.
Worked with the workaround mentioned in https://github.com/eclipse-ee4j/mail/issues/461 on Jakarta-mail 1.6.6 development version.
com.sun.mail.smtp.SMTPSendFailedException: 551 This mail server requires authentication before sending mail from a locally hosted domain. Please reconfigure your mail client to authenticate before sending mail.
I am getting the error above when I integrate with the my Java Application running on a Tomcat server
Sending successfully if I use the same properties in separate class with main and run as java application
Why I am not getting this? Thank you in advance.
Finally got answer
Here we go: before it was like
`Properties props = new Properties();
props.put("mail.smtp.host", "webmail.technobbyte.com");
props.put("mail.smtp.port", "25");
props.put("mail.smtp.starttls.enable", true);
props.put("mail.smtp.auth", true);`
now i changed to:
`Properties props = new Properties();
props.setProperty("mail.smtp.host", "webmail.technobbyte.com");
props.setProperty("mail.smtp.port", "25");
props.setProperty("mail.smtp.starttls.enable", "true");
props.setProperty("mail.smtp.auth", "true");`
I have been using java mail to send mail from jsp to send emails.
But google is blocking my request and I am getting a message from gmail to my inbox as Signin attempt blocked.
In order to send mails from my account I have to update my security setting access permission to less secureapps but I don't want to do it.
So how to send mails using ssl in java mail?
The sample code I am using is:
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.starttls.enable", "true");
The "less secure apps" setting has nothing to do with SSL. It's required to allow you to login using just a username and password, instead of using the (more complicated, but presumably more secure) OAuth2 authentication technique.
I am using JAMES (Java Apache Mail Enterprise Server) as a mail server, and i am aiming to develop an enterprise java mailing system using Java-mail and JAF APIs on a local mail server.
For instance, i have made a simple application for test, i used the pop3 protocol to send/receive messages between clients and everything was OK.
The problem which occurred is that i want to view the sent/ deleted/ trash emails for each client which is not available in pop3 protocol. I have to use IMAP in stead.
But actually, the connection to the server using IMAP protocol is not working !!
this is a sample of the code :
#Stateless
public class Mailer{
#Resource(name = "mail/JavaMailSession")
private Session session
private Message[] messages;
private Message [] outboxContent(String email,String pass){
IMAPStore store = null;
IMAPFolder outbox = null;
try{
store = (IMAPStore) session.getStore("imaps");
store.connect("localhost",-1,email,pass);
if(store.isConnected()){
outbox = (IMAPFolder) store.getFolder("sent-items");
.
.
.
The exception is being thrown at :
store.connect(....
The exception being thrown is :
java.mail.MessagingException : Connection refused : connect;
nested exception is :
java.net.ConnectionException: Connection refused : connect
Anybody has idea about the sollution ?
Thanks in advance
I am using java mail api to send email and I need to know the parameters to use for sending a test email in development environment
If I want to use smtp.gmail.com as the smtp mail server , it has port 465 - found on internet , do I need to set authentication to true with username and password also set or authentication=false in fine?
also if authentication=true is required then username, password are my gmail username & password?
Also how to set the cc and bcc addresses in the email message?
Looking for the most basic way to send email to start with
Thanks
If you want to use Gmail, see the JavaMail FAQ.
In order to use gmail as your email server, you have to set a few properties like host,port,authentication etc as per JavaMail API standards. You can get these details from
https://support.google.com/a/answer/176600?hl=en
Sample Code:
public class SendMail
{
public SendMail()
{
// mail properties outgoing server (gmail.com)
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "465");
props.put("mail.smtp.auth", "true");
//Create session object
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props,auth);
//prepare mail msg
MimeMessage msg = new MimeMessage(session);
//set header values
msg.setSubject("open to it know it1");
msg.setFrom(new InternetAddress("yyyyyy#gmail.com"));
//Here in below line, you can specify RecipientType as TO/CC/BCC as per your requirement
msg.addRecipient(Message.RecipientType.TO, new InternetAddress("xxxxxxx#gmail.com"));
//msg text
msg.setText("mail from HCL Technlogies");
Transport.send(msg);
private class SMTPAuthenticator extends javax.mail.Authenticator {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("nitraja2015#gmail.com","raryan500");
}
This is not a programming question. Firstly, if you're on not an a dynamically-assigned IP address (that is likely spam-blocked by many mail servers), you don't need an SMTP server. You just take "toaddress#domain" and resolve the "domain" part to a mail exchange handler (DNS MX record lookup) make a direct SMTP connection to that server and put your mail there. You don't program this yourself because mail-handling applications or middleware should know how to do this all by itself.
If you're not on a clean static IP address, you probably can't do that because many SMTP servers will reject connections from such addresses (a common source of spam!).
In that case, your first solution is to relay through the SMTP server provided by your internet provider. (It may be secured, so you have to set up your authentication credentials.)
If that doesn't work (e.g. it is too insecure or otherwise spam-friendly and so widely black-listed) then you look elsewhere for SMTP sending solutions.
Nobody can answer this for you because the best SMTP server depends on how you are hooked up to the Internet.