javax mail AuthenticationFailedException failed to connect no password specified

Question

This program attempts to send e-mail but throws a run time exception   javax mail AuthenticationFailedException  failed to connect  no password specified    Why am I getting this exception when I have supplied the correct username and password for authentication   Both the sender and receiver have g-mail accounts   The sender and the receiver both have g-mail accounts   The sender has 2-step verification process disabled    This is the code   import javax mail    import javax mail internet    import java util     class tester       public static void main String args              Properties props   new Properties            props put  mail smtp host     smtp gmail com            props put  mail stmp user     username               To use TLS         props put  mail smtp auth    true             props put  mail smtp starttls enable    true            props put  mail smtp password    password              To use SSL         props put  mail smtp socketFactory port    465            props put  mail smtp socketFactory class                 javax net ssl SSLSocketFactory            props put  mail smtp auth    true            props put  mail smtp port    465              Session session    Session getDefaultInstance  props   null           String to    me gmail com           String from    from gmail com           String subject    Testing              Message msg   new MimeMessage session           try               msg setFrom new InternetAddress from                msg setRecipient Message RecipientType TO                   new InternetAddress to                msg setSubject subject               msg setText  Working fine                   Transport transport   session getTransport  smtp                transport connect  smtp gmail com    465    username    password                transport send msg               System out println  fine                        catch Exception exc                System out println exc                       Even after giving the password I get the exception   Why is it not authenticating

User · Answer

I also have this problem so don t worry  It comes from mail server side due to an outside authentication issue  Open your mail and you will get a mail from the mail server telling you to enable accessibility  When you have done that  retry your program

User · Answer

This error may be about password characters  If your password contains special characters and also you add your password into Transport class methods   For Example   Transport transport   session getTransport  smtp    transport connect  user   passw rd      or  Transport send msg   user    passw rd      you may get that error  Because Transport class  methods may not handle special characters  If you add your username and password into your message using javax mail PasswordAuthentication class  i hope you will escape that error   For Example      Session session   Session getInstance props  new javax mail Authenticator       protected PasswordAuthentication getPasswordAuthentication           return new PasswordAuthentication  user    pas w r d             Message message   new MimeMessage session       Transport send message

User · Answer

Turn On  Access for less secure apps  in Security setting for the gmail account  from mail   see the below link for references  http   www ghacks net 2014 07 21 gmail-starts-block-less-secure-apps-enable-access

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I ve solved this issue adding user and password in Transport send call   Transport send msg   user    password        According to this signature of the send function in javax mail  from version 1 5    public static void send Message msg  String user  String password   Also  if you use this signature it s not necessary to set up any Authenticator  and to set user and password in the Properties  only the host is needed   So your code could be   private void sendMail      try        Properties prop   System getProperties          prop put  mail smtp host    yourHost          Session session   Session getInstance prop         Message msg    createYourMsg session  from  to  subject  mailer  yatta yatta             Transport send msg   user    password       catch Exception exc             Deal with it

User · Answer

First of all  enable the less secure app in your Gmail account from which you will send emails using this link - https   myaccount google com lesssecureapps pli 1  Then you simply add the following code in your session creation  It will work fine then    Session mailSession   Session getInstance props  new javax mail Authenticator                protected PasswordAuthentication getPasswordAuthentication                     return new PasswordAuthentication                       your email    your password      Specify the Username and the PassWord                             if you want the more elaborated one use the following -  import java util Properties   import javax mail Message  import javax mail MessagingException  import javax mail NoSuchProviderException  import javax mail PasswordAuthentication  import javax mail Session  import javax mail Transport  import javax mail internet InternetAddress  import javax mail internet MimeBodyPart  import javax mail internet MimeMessage  import javax mail internet MimeMultipart   public class MailSender        public Properties mailProperties             Properties props   new Properties             props setProperty  mail transport protocol    smtp            props setProperty  mail smtp host    smtp gmail com            props setProperty  mail smtp port    587            props setProperty  mail smtp user    your email            props setProperty  mail smtp password    your password            props setProperty  mail smtp starttls enable    true            props setProperty  mail smtp auth    true             return props             public String sendMail String from  String to  String subject  String msgBody            Properties props   mailProperties            Session mailSession   Session getInstance props  new javax mail Authenticator                protected PasswordAuthentication getPasswordAuthentication                     return new PasswordAuthentication                       your email    your password      Specify the Username and the PassWord                                    mailSession setDebug false            try               Transport transport   mailSession getTransport                 MimeMessage message   new MimeMessage mailSession               message setSubject subject               message setFrom new InternetAddress from                message addRecipients Message RecipientType TO  to                MimeMultipart multipart   new MimeMultipart                 MimeBodyPart messageBodyPart   new MimeBodyPart                 messageBodyPart setContent msgBody   text html                 multipart addBodyPart messageBodyPart               message setContent multipart                transport connect                transport sendMessage message  message getRecipients Message RecipientType TO                transport close                return  SUCCESS             catch  NoSuchProviderException e                e printStackTrace                return  INVALID EMAIL             catch  MessagingException e                e printStackTrace                      return  ERROR              public static void main String args              System out println new MailSender   sendMail  your email from email    to email    Subject    Message               Hope  it helps  Thanks

User · Answer

In addition to RMT s answer  I also had to modify the code a bit     Transport send should be accessed statically therefor  transport connect did not do anything for me  I only needed to set the connection info in the initial Properties object    here is my sample send   methods  The config object is just a dumb data container   public boolean send String to  String from  String subject  String text        return send new String    to   from  subject  text      public boolean send String   to  String from  String subject  String text         Properties props   new Properties        props put  mail smtp auth    true        props put  mail smtp host   config host       props put  mail smtp user   config username       props put  mail smtp port   config port       props put  mail smtp password   config password        Session session   Session getInstance props  new SmtpAuthenticator config         try           Message message   new MimeMessage session           message setFrom new InternetAddress from            InternetAddress   addressTo   new InternetAddress to length           for  int i   0  i  lt  to length  i                  addressTo i    new InternetAddress to i                      message setRecipients Message RecipientType TO  addressTo           message setSubject subject           message setText text           Transport send message         catch  MessagingException e            e printStackTrace            return false            return true

User · Answer

Your email session should be provided an authenticator instance as below   Session session   Session getDefaultInstance props      new Authenticator             protected PasswordAuthentication  getPasswordAuthentication             return new PasswordAuthentication                       myemail gmail com    password                                a complete example is here http   bharatonjava wordpress com 2012 08 27 sending-email-using-java-mail-api

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Try to create an javax mail Authenticator Object  and send that in with the properties object to the Session object    Authenticator edit   You can modify this to accept a username and password and you can store them there  or where ever you want   public class SmtpAuthenticator extends Authenticator   public SmtpAuthenticator          super        Override public PasswordAuthentication getPasswordAuthentication      String username    user    String password    password       if   username    null   amp  amp   username length    gt  0   amp  amp   password    null          amp  amp   password length       gt  0              return new PasswordAuthentication username  password              return null      In your class where you send the email   SmtpAuthenticator authentication   new SmtpAuthenticator    javax mail Message msg   new MimeMessage Session                      getDefaultInstance emailProperties  authenticator

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It might be worth verifying that the gmail account hasn t been locked out due to several unsuccessful login attempts  you may need to reset your password   I had the same problem as you  and this turned out to be the solution

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import java util Properties   import javax mail Authenticator  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   import com opensymphony xwork2 ActionSupport  import com opensymphony xwork2 ModelDriven    SuppressWarnings  serial   public class RegisterAction         public String execute                RegisterAction mailBean   new RegisterAction                String subject  Your username  amp  password                String message  Hi     username            message    n  n Your username is     email            message    n  n Your password is     password            message    n  n Please login to the web site with your username and password              message    n  n Thanks             message    n  n  n Regards                 Getting  FROM MAIL             String   recipients   new String 1               recipients 0    new String                recipients 0    customer getEmail                try            mailBean sendMail recipients subject message              return  success              catch Exception e              System out println  Error in sending mail   e                        return  failure              public void sendMail  String recipients     String subject  String message               throws MessagingException                                 boolean debug   false                      Set the host smtp address                   Properties props   new Properties                     props put  mail smtp host    smtp gmail com                     props put  mail smtp starttls enable   true                    props put  mail smtp auth   true                       create some properties and get the default Session                  Session session   Session getDefaultInstance props  new Authenticator                          protected PasswordAuthentication getPasswordAuthentication                             return new PasswordAuthentication                                   username gmail com    5373273437543      Specify the Username and the PassWord                                                            session setDebug debug                        create a message                 Message msg   new MimeMessage session                     InternetAddress   addressTo   new InternetAddress recipients length                   for  int i   0  i  lt  recipients length  i                                        addressTo i    new InternetAddress recipients i                                       msg setRecipients Message RecipientType TO  addressTo                       Optional   You can also set your custom headers  in the Email if you Want                   msg addHeader  MyHeaderName    myHeaderValue                        Setting the Subject and Content Type                 msg setSubject subject                   msg setContent message   text plain                       send message                 Transport send msg                    System out println  Message Sent Successfully

User · Answer

Even when using an Authenticator I had to set mail smtp auth property to true  Here is a working example   final Properties props   new Properties    props put  mail smtp host   config getSmtpHost     props setProperty  mail smtp auth    true     Session session   Session getDefaultInstance props  new javax mail Authenticator       protected PasswordAuthentication getPasswordAuthentication           return new PasswordAuthentication config getSmtpUser    config getSmtpPassword

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You need to add the Object Authentication as the Parameter to the Session  such as   Session session   Session getDefaultInstance props       new javax mail Authenticator            protected PasswordAuthentication getPasswordAuthentication                 return new PasswordAuthentication                   XXXX gmail com    XXXXX      Specify the Username and the PassWord                 now You will not get this kind of Exception      javax mail AuthenticationFailedException  failed to connect  no password specified

User · Answer

See the 9 line of your code it may be an error  it should be   mail smtp user    not  mail stmp user

User · Answer

I have just faced this problem  and the solution is that the property  mail smtp user  should be your email  not username    The example for gmail user   properties put  mail smtp starttls enable    true    properties put  mail smtp host   host   properties put  mail smtp user   from   properties put  mail smtp password   pass   properties put  mail smtp port    587    properties put  mail smtp auth    true

[java] javax.mail.AuthenticationFailedException: failed to connect, no password specified?

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