I am trying to make connection to the email server using property files and session store value. and all the parameters are given dynamically.
this is what i'm trying
Properties props = System.getProperties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", emailHost);
props.put("mail.smtp.port", "2525");
Session sessions = Session.getDefaultInstance(props);
Store store = sessions.getStore(emailAccType);
store.connect(emailHost, emailId, emailPwd);
Even if i am giving the correct email and password, the connection is not setting up.
please do the needful help.
Thanks in advance.
Couple of ideas:
make sure the email server does not require pop3 login first.
make sure port is open in firewall
Do you get any exceptions during your tries?
Does it throw an exception or it just doesn't work?
I am using gmail for sending emails and I used something like this:
Session.getInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(email, password);
}
});
Related
A friend of mine has a new website and i build him a tool to organize email-addresses and send newsletters (HTML-Messages). Therefore i use the javax.mail library. While developing i sent all mails from my gmail account and it worked fine. But now, for "production", i want to send the mails from his domain, which is hosted by 1und1.
I am able to connect successfully to the 1und1 smtp-Server, but as soon as i send a mail, i get the following errors:
com.sun.mail.smtp.SMTPSenderFailedException: 550-Requested action not taken: mailbox unavailable
550 invalid DNS MX or A/AAAA resource record
When sending from the online 1und1 webmailer, i can send to any mailadress without errors.
These are the props i set for mailing. Like i said, i can connect to the server with these information, but sending fails.
Properties props = new Properties();
// Zum Senden
props.setProperty("mail.smtp.starttls.enable" , "true");
props.setProperty("mail.smtp.host", configurationService.getMailHost()); // smtp.1und1.de
props.setProperty("mail.smtp.auth", configurationService.getMailAuth().toString()); // true
props.setProperty("mail.smtp.port", configurationService.getMailPort()); // 587
props.setProperty("mail.smtp.user", user);
props.setProperty("mail.smtp.password", pass);
return Session.getInstance(props, new javax.mail.Authenticator() {
#Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(props.getProperty("mail.smtp.user"),
props.getProperty("mail.smtp.password"));
}
});
Thanks for help!
Edit: When Debugging the Session, i get the following line just before the exception occurs:
MAIL FROM: <USER#LAPTOP-Name.fritz.box>
How can i change this to something accepted?
I have created automated email report using java mail api which needs to be triggered everyday after a batch file run.Although it works fine most of the times,at times it gives exception javax.mail.MessagingException: Could not connect to SMTP host: my host name, port: 25; nested exception is: java.net.ConnectException: Connection refused.This is not due to authentication issue as i use the same credentials whenever i sent the email.
I am not sure why java mail api fails intermittently.Can i get some suggestion to debug the issue?
I am using the below code snippet -
String to = "xyz#gmail.com";//change accordingly
String from = "abc#mydomain.com";//change accordingly
final String username = "abc";//change accordingly
final String password = "*****";//change accordingly
String host = "My SMTP server";
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", "25");
// Get the Session object.
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
message.setSubject("Testing Subject");
message.setText("message to stakeholders");
Transport.send(message);
}
It's a good idea to check logs on the mail server to see possible cause of the refusal - especially since you know WHEN failed attempts were made at.
If JavaMail can't connect "sometimes" with "connection refused", the possibilities are:
The server is actually down.
The server is up, but too busy to accept new connections.
The server is up, but is rejecting connections for some policy reason, e.g., you've connected too frequently.
Some firewall or anti-virus program has rejected the connection.
Check the server configuration and log files. If there's nothing on the server indicating that it's rejecting connections, check the client.
I'm currently writing a simple Java application that will allow the user to send and receive email. When the application starts, it prompts the user to log in in the following format:
username#provider.com
passwd
Currently I have the field split so that provider.com is placed in its own string. Is there any way I can use the java mail api or something else to retrieve the settings for "provider.com?" I'm looking to get back strings such as "smtp.gmail.com" when the user has a gmail account and so-forth. Any help would be appreciated!
EDIT: To clarify what I am after...
final Properties properties = new Properties();
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.starttls.enable", "true");
properties.put("mail.smtp.host", "smtp.gmail.com"); // I want to get this (smtp.gmail.com)
properties.put("mail.smtp.port", "465"); // And this (465)
// from the user entered "gmail.com" or "live.com"
I just found this after some more searching: Finding SMTP host and port knowing the e-mail address using JAVA API
It seems there is no predictable way to do this. Very disappointing.
I'm connecting to a Mail-Server (IMAP) where the address of a postbox is not equal to the username that one uses to login.
For instance, to connect to the postbox with address myaddress#myhost.com, the code would look like this:
Properties props = System.getProperties();
Session session = Session.getDefaultInstance(props, null);
Store store = session.getStore("imap");
store.connect("mail.myhost.local", "user123", "pass");
Note that the user-name is different from the address.
How can the email-address of a specific user-host be resolved?
In general, it can't. The user has to tell you both.
I have been working at home on Gmail-Imap-Api on the weekend. It was working Properly But when i returned to office and am trying here it throws exception.
Properties props = System.getProperties();
props.put("mail.store.protocol", "imaps");
props.put("mail.smtp.auth", "true");
try {
boolean debug = false;
Authenticator auth = new SMTPAuthenticator(
"***", "***");
Session session = Session.getInstance(props, auth);
session.setDebug(debug);
Store store = session.getStore("imaps");
store.connect("imap.gmail.com", "***#gmail.com",
"****");
......
......
This was working fine at home netwrok.
Now i thought i would add proxy and added these lines of code.
System.setProperty("http.proxyHost", "****.com");
System.setProperty("http.proxyPort", "8080");
Still it doesnt work and the exception is.
com.google.code.javax.mail.MessagingException: imap.gmail.com;
nested exception is:
java.net.UnknownHostException: imap.gmail.com
at com.google.code.com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:665)
at com.google.code.javax.mail.Service.connect(Service.java:295)
at com.google.code.javax.mail.Service.connect(Service.java:176)
at openReports.OpenReportsProject.main(OpenReportsProject.java:43)
Caused by: java.net.UnknownHostException: imap.gmail.com
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:367)
at java.net.Socket.connect(Socket.java:524)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:545)
at com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:141)
at com.google.code.com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:288)
at com.google.code.com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:231)
at com.google.code.com.sun.mail.iap.Protocol.<init>(Protocol.java:113)
at com.google.code.com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:110)
at com.google.code.com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:632)
... 3 more
The proxy settings that you have entered will work only for HTTP connections. IMAP is a different protocol operating on a different port (993 in this case). If you are behind firewall, your firewall needs to allow connection to the external host:port AND the protocol. You need to request to your Network Administrator for this. Once the settings are in place you will be able to communicate to Gmail Imap server on default/specified port with specified protocol.