How can I send an email by Java application using GMail Yahoo or Hotmail

Question

Is it possible to send an email from my Java application using a GMail account   I have configured my company mail server with Java app to send email  but that s not going to cut it when I distribute the application  Answers with any of using Hotmail  Yahoo or GMail are acceptable

User · Answer

set CLASSPATH  CLASSPATH  activation jar mail jar import javax mail    import javax mail internet    import java util     public class Mail       String  d email    iamdvr gmail com               d password                       d host    smtp gmail com               d port     465               m to    iamdvr yahoo com               m subject    Testing               m text    Hey  this is the testing email using smtp gmail com        public static void main String   args                String   to   XXX yahoo com            String   cc   XXX yahoo com            String   bcc   XXX yahoo com              This is for google         Mail sendMail  venkatesh dfdf com    password    smtp gmail com                           465    true    true                          true   javax net ssl SSLSocketFactory    false                          to  cc  bcc                          hi baba don t send virus mails                             This is my style   of reply  If u send virus mails                 public synchronized static boolean sendMail          String userName  String passWord  String host           String port  String starttls  String auth           boolean debug  String socketFactoryClass  String fallback           String   to  String   cc  String   bcc           String subject  String text                 Properties props   new Properties              Properties props System getProperties            props put  mail smtp user   userName           props put  mail smtp host   host           if     equals port               props put  mail smtp port   port           if     equals starttls               props put  mail smtp starttls enable  starttls           props put  mail smtp auth   auth           if debug                props put  mail smtp debug    true              else               props put  mail smtp debug    false                               if     equals port               props put  mail smtp socketFactory port   port           if     equals socketFactoryClass               props put  mail smtp socketFactory class  socketFactoryClass           if     equals fallback               props put  mail smtp socketFactory fallback   fallback            try                       Session session   Session getDefaultInstance props  null               session setDebug debug               MimeMessage msg   new MimeMessage session               msg setText text               msg setSubject subject               msg setFrom new InternetAddress  p sambasivarao sutyam com                 for int i 0 i lt to length i                      msg addRecipient Message RecipientType TO                                    new InternetAddress to i                               for int i 0 i lt cc length i                      msg addRecipient Message RecipientType CC                                    new InternetAddress cc i                               for int i 0 i lt bcc length i                      msg addRecipient Message RecipientType BCC                                    new InternetAddress bcc i                               msg saveChanges                Transport transport   session getTransport  smtp                transport connect host  userName  passWord               transport sendMessage msg  msg getAllRecipients                 transport close                return true                    catch  Exception mex                        mex printStackTrace                return false

User · Answer

Even though this question is closed  I d like to post a counter solution  but now using Simple Java Mail  Open Source JavaMail smtp wrapper    final Email email   new Email     String host    smtp gmail com   Integer port   587  String from    username   String pass    password   String   to     to gmail com     email setFromAddress     from   email setSubject  sending in a group    for  int i 0  i  lt  to length  i           email addRecipient     to i   RecipientType TO     email setText  Welcome to JavaMail     new Mailer host  port  from  pass  sendMail email      you could also still use your mail session instead new Mailer session  sendMail email

User · Answer

Hi try this code      package my test service   import java util Properties   import javax mail Authenticator  import javax mail MessagingException  import javax mail PasswordAuthentication  import javax mail Session  import javax mail Message  import javax mail Transport  import javax mail internet AddressException  import javax mail internet InternetAddress  import javax mail internet MimeMessage   public class Sample       public static void main String args              final String SMTP HOST    smtp gmail com           final String SMTP PORT    587           final String GMAIL USERNAME    xxxxxxxxxx gmail com           final String GMAIL PASSWORD    xxxxxxxxxx            System out println  Process Started             Properties prop   System getProperties            prop setProperty  mail smtp starttls enable    true            prop setProperty  mail smtp host   SMTP HOST           prop setProperty  mail smtp user   GMAIL USERNAME           prop setProperty  mail smtp password   GMAIL PASSWORD           prop setProperty  mail smtp port   SMTP PORT           prop setProperty  mail smtp auth    true            System out println  Props       prop            Session session   Session getInstance prop  new Authenticator                 protected PasswordAuthentication getPasswordAuthentication                     return new PasswordAuthentication GMAIL USERNAME                          GMAIL PASSWORD                                      System out println  Got Session       session            MimeMessage message   new MimeMessage session           try               System out println  before sending                message setFrom new InternetAddress GMAIL USERNAME                message addRecipients Message RecipientType TO                      InternetAddress parse GMAIL USERNAME                message setSubject  My First Email Attempt from Java                message setText  Hi  This mail came from Java Application                 message setRecipients Message RecipientType TO                      InternetAddress parse GMAIL USERNAME                Transport transport   session getTransport  smtp                System out println  Got Transport    transport               transport connect SMTP HOST  GMAIL USERNAME  GMAIL PASSWORD               transport sendMessage message  message getAllRecipients                 System out println  message Object       message               System out println  Email Sent Successfully              catch  AddressException e                   TODO Auto-generated catch block             e printStackTrace              catch  MessagingException e                   TODO Auto-generated catch block             e printStackTrace

User · Answer

The posted code solutions may cause problems when you need to set up multiple SMTP sessions anywhere within the same JVM   The JavaMail FAQ recommends using  Session getInstance properties     instead of  Session getDefaultInstance properties     because the getDefault will only use the properties given the first time it is invoked  All later uses of the default instance will ignore property changes   See http   www oracle com technetwork java faq-135477 html getdefaultinstance

User · Answer

Other people have good answers above  but I wanted to add a note on my experience here   I ve found that when using Gmail as an outbound SMTP server for my webapp  Gmail only lets me send  10 or so messages before responding with an anti-spam response that I have to manually step through to re-enable SMTP access   The emails I was sending were not spam  but were website  welcome  emails when users registered with my system   So  YMMV  and I wouldn t rely on Gmail for a production webapp   If you re sending email on a user s behalf  like an installed desktop app  where the user enters their own Gmail credentials   you may be okay   Also  if you re using Spring  here s a working config to use Gmail for outbound SMTP    lt bean id  mailSender  class  org springframework mail javamail JavaMailSenderImpl  gt       lt property name  defaultEncoding  value  UTF-8   gt       lt property name  host  value  smtp gmail com   gt       lt property name  port  value  465   gt       lt property name  username  value    mail username    gt       lt property name  password  value    mail password    gt       lt property name  javaMailProperties  gt           lt value gt              mail debug true             mail smtp auth true             mail smtp socketFactory class java net SocketFactory             mail smtp socketFactory fallback false          lt  value gt       lt  property gt   lt  bean gt

User · Answer

If you want to use outlook with Javamail API then use   smtp-mail outlook com   as a host for more and complete working code Check out this answer

User · Answer

My complete code as below is working well   package ripon java mail  import java util    import javax mail    import javax mail internet     public class SendEmail   public static void main String    args               Sender s email ID needs to be mentioned      String from    test gmail com        String pass   test123          Recipient s email ID needs to be mentioned     String to    ripon420 yahoo com       String host    smtp gmail com          Get system properties    Properties properties   System getProperties          Setup mail server    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           Get the default Session object     Session session   Session getDefaultInstance properties       try           Create a default MimeMessage object        MimeMessage message   new MimeMessage session             Set From  header field of the header        message setFrom new InternetAddress from              Set To  header field of the header        message addRecipient Message RecipientType TO                                 new InternetAddress to              Set Subject  header field       message setSubject  This is the Subject Line               Now set the actual message       message setText  This is actual message              Send message       Transport transport   session getTransport  smtp          transport connect host  from  pass         transport sendMessage message  message getAllRecipients           transport close          System out println  Sent message successfully            catch  MessagingException mex          mex printStackTrace

User · Answer

This is what I do when i want to send email with attachment  work fine       public class NewClass        public static void main String   args            try               Properties props   System getProperties                props put  mail smtp starttls enable    true                props put  mail smtp host    smtp gmail com                props put  mail smtp auth    true                props put  mail smtp port    465       smtp port             Authenticator auth   new Authenticator                       Override                 protected PasswordAuthentication getPasswordAuthentication                         return new PasswordAuthentication  username-gmail    password-gmail                                                 Session session   Session getDefaultInstance props  auth               MimeMessage msg   new MimeMessage session               msg setFrom new InternetAddress  username-gmail gmail com                 msg setSubject  Try attachment gmail                msg setRecipient RecipientType TO  new InternetAddress  username-gmail gmail com                   add atleast simple body             MimeBodyPart body   new MimeBodyPart                body setText  Try attachment                  do attachment             MimeBodyPart attachMent   new MimeBodyPart                FileDataSource dataSource   new FileDataSource new File  file-sent txt                 attachMent setDataHandler new DataHandler dataSource                attachMent setFileName  file-sent txt                attachMent setDisposition MimeBodyPart ATTACHMENT               Multipart multipart   new MimeMultipart                multipart addBodyPart body               multipart addBodyPart attachMent               msg setContent multipart               Transport send msg             catch  AddressException ex                Logger getLogger NewClass class getName    log Level SEVERE  null  ex             catch  MessagingException ex                Logger getLogger NewClass class getName    log Level SEVERE  null  ex

User · Answer

An easy route would be to have the gmail account configured enabled for POP3 access  This would allow you to send out via normal SMTP through the gmail servers      Then you d just send through smtp gmail com  on port 587

User · Answer

Something like this  sounds like you just need to change your SMTP server    String host    smtp gmail com   String from    user name   Properties props   System getProperties    props put  mail smtp host   host   props put  mail smtp user   from   props put  mail smtp password    asdfgh    props put  mail smtp port    587       587 is the port number of yahoo mail props put  mail smtp auth    true     Session session   Session getDefaultInstance props  null   MimeMessage message   new MimeMessage session   message setFrom new InternetAddress from     InternetAddress   to address   new InternetAddress to length   int i   0     To get the array of addresses while  to i     null        to address i    new InternetAddress to i        i      System out println Message RecipientType TO   i   0  while  to address i     null         message addRecipient Message RecipientType TO  to address i        i      message setSubject  sending in a group    message setText  Welcome to JavaMail       alternately  to send HTML mail     message setContent   lt p gt Welcome to JavaMail lt  p gt     text html    Transport transport   session getTransport  smtp    transport connect  smtp mail yahoo co in    user name    asdfgh    transport sendMessage message  message getAllRecipients     transport close

User · Answer

Here s an easy-to-use class for sending emails with Gmail  You need to have the JavaMail library added to your build path or just use Maven   import java util Properties   import javax activation DataHandler  import javax activation DataSource  import javax activation FileDataSource  import javax mail BodyPart  import javax mail Message  import javax mail MessagingException  import javax mail Multipart  import javax mail Session  import javax mail Transport  import javax mail internet AddressException  import javax mail internet InternetAddress  import javax mail internet MimeBodyPart  import javax mail internet MimeMessage  import javax mail internet MimeMultipart   public class GmailSender       private static String protocol    smtp        private String username      private String password       private Session session      private Message message      private Multipart multipart       public GmailSender                 this multipart   new MimeMultipart               public void setSender String username  String password                this username   username          this password   password           this session   getSession            this message   new MimeMessage session              public void addRecipient String recipient  throws AddressException  MessagingException               message addRecipient Message RecipientType TO  new InternetAddress recipient               public void setSubject String subject  throws MessagingException               message setSubject subject              public void setBody String body  throws MessagingException               BodyPart messageBodyPart   new MimeBodyPart            messageBodyPart setText body           multipart addBodyPart messageBodyPart            message setContent multipart              public void send   throws MessagingException               Transport transport   session getTransport protocol           transport connect username  password           transport sendMessage message  message getAllRecipients              transport close               public void addAttachment String filePath  throws MessagingException               BodyPart messageBodyPart   getFileBodyPart filePath           multipart addBodyPart messageBodyPart            message setContent multipart              private BodyPart getFileBodyPart String filePath  throws MessagingException               BodyPart messageBodyPart   new MimeBodyPart            DataSource dataSource   new FileDataSource filePath           messageBodyPart setDataHandler new DataHandler dataSource            messageBodyPart setFileName filePath            return messageBodyPart             private Session getSession                 Properties properties   getMailServerProperties            Session session   Session getDefaultInstance properties            return session             private Properties getMailServerProperties                 Properties properties   System getProperties            properties put  mail smtp starttls enable    true            properties put  mail smtp host   protocol     gmail com            properties put  mail smtp user   username           properties put  mail smtp password   password           properties put  mail smtp port    587            properties put  mail smtp auth    true             return properties            Example usage   GmailSender sender   new GmailSender    sender setSender  myEmailNameWithout gmail com    mypassword    sender addRecipient  recipient somehost com    sender setSubject  The subject    sender setBody  The body    sender addAttachment  TestFile txt    sender send

User · Answer

Value added   encoding pitfalls in subject  message and display name only one magic property is needed for modern java mail library versions Session getInstance   recommended over Session getDefaultInstance   attachment in the same example still works after Google turns off less secure apps  Enable 2-factor authentication in your organization - gt  turn on 2FA - gt  generate app password       import java io File      import java nio charset StandardCharsets      import java util Properties      import java util logging Level      import java util logging Logger      import javax activation DataHandler      import javax mail Message      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      import javax mail util ByteArrayDataSource           public class Gmailer         private static final Logger LOGGER   Logger getLogger Gmailer class getName                public static void main String   args            send                       public static void send             Transport transport   null          try             String accountEmail    quot account source com quot             String accountAppPassword    quot  quot             String displayName    quot Display-Name   quot             String replyTo    quot reply-to source com quot                  String to    quot to target com quot             String cc    quot cc target com quot             String bcc    quot bcc target com quot                  String subject    quot Subject   quot             String message    quot  lt span style  color  red   gt   lt  span gt  quot             String type    quot html quot      or  quot plain quot            String mimeTypeWithEncoding    quot text  quot    type    quot   charset  quot    StandardCharsets UTF 8 name                   File attachmentFile   new File  quot Attachment pdf quot                 https   developer mozilla org en-US docs Web HTTP Basics of HTTP MIME types Common types           String attachmentMimeType    quot application pdf quot             byte   bytes           read file to byte array                Properties properties   System getProperties              properties put  quot mail debug quot    quot true quot                 i found that this is the only property necessary for a modern java mail version           properties put  quot mail smtp starttls enable quot    quot true quot                 https   javaee github io javamail FAQ getdefaultinstance           Session session   Session getInstance properties                  MimeMessage mimeMessage   new MimeMessage session                     probably best to use the account email address  to avoid landing in spam or blacklists              not even sure if the server would accept a differing from address           InternetAddress from   new InternetAddress accountEmail             from setPersonal displayName  StandardCharsets UTF 8 name               mimeMessage setFrom from                  mimeMessage setReplyTo InternetAddress parse replyTo                   mimeMessage setRecipients Message RecipientType TO  InternetAddress parse to              mimeMessage setRecipients Message RecipientType CC  InternetAddress parse cc              mimeMessage setRecipients Message RecipientType BCC  InternetAddress parse bcc                   mimeMessage setSubject subject  StandardCharsets UTF 8 name                    MimeMultipart multipart   new MimeMultipart                   MimeBodyPart messagePart   new MimeBodyPart              messagePart setContent mimeMessage  mimeTypeWithEncoding             multipart addBodyPart messagePart                  MimeBodyPart attachmentPart   new MimeBodyPart              attachmentPart setDataHandler new DataHandler new ByteArrayDataSource bytes  attachmentMimeType               attachmentPart setFileName attachmentFile getName               multipart addBodyPart attachmentPart                  mimeMessage setContent multipart                  transport   session getTransport              transport connect  quot smtp gmail com quot   587  accountEmail  accountAppPassword             transport sendMessage mimeMessage  mimeMessage getAllRecipients                       catch Exception e                 I prefer to bubble up exceptions  so the caller has the info that someting went wrong  and gets a chance to handle it               I also prefer not to force the exception in the signature            throw e instanceof RuntimeException    RuntimeException  e   new RuntimeException e                     finally             if transport    null                try                 transport close                              catch Exception e                  LOGGER log Level WARNING   quot failed to close java mail transport   quot    e

User · Answer

The minimum required   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 AddressException  import javax mail internet InternetAddress  import javax mail internet MimeMessage   public class MessageSender        public static void sendHardCoded   throws AddressException  MessagingException           String to    a a info           final String from    b gmail com            Properties properties   new Properties            properties put  mail smtp starttls enable    true            properties put  mail smtp auth    true            properties put  mail smtp host    smtp gmail com            properties put  mail smtp port    587             Session session   Session getInstance properties                  new javax mail Authenticator                         protected PasswordAuthentication getPasswordAuthentication                             return new PasswordAuthentication from   BeNice                                                       MimeMessage message   new MimeMessage session           message setFrom new InternetAddress from            message addRecipient Message RecipientType TO  new InternetAddress to            message setSubject  Hello            message setText  What s up              Transport send message

User · Answer

First download the JavaMail API and make sure the relevant jar files are in your classpath   Here s a full working example using GMail   import java util    import javax mail    import javax mail internet     public class Main        private static String USER NAME                GMail user name  just the part before   gmail com       private static String PASSWORD                  GMail password     private static String RECIPIENT    lizard bill myschool edu        public static void main String   args            String from   USER NAME          String pass   PASSWORD          String   to     RECIPIENT       list of recipient email addresses         String subject    Java send mail example           String body    Welcome to JavaMail             sendFromGMail from  pass  to  subject  body              private static void sendFromGMail String from  String pass  String   to  String subject  String body            Properties props   System getProperties            String host    smtp gmail com           props put  mail smtp starttls enable    true            props put  mail smtp host   host           props put  mail smtp user   from           props put  mail smtp password   pass           props put  mail smtp port    587            props put  mail smtp auth    true             Session session   Session getDefaultInstance props           MimeMessage message   new MimeMessage session            try               message setFrom new InternetAddress from                InternetAddress   toAddress   new InternetAddress to length                   To get the array of addresses             for  int i   0  i  lt  to length  i                       toAddress i    new InternetAddress to i                               for  int i   0  i  lt  toAddress length  i                      message addRecipient Message RecipientType TO  toAddress i                               message setSubject subject               message setText body               Transport transport   session getTransport  smtp                transport connect host  from  pass               transport sendMessage message  message getAllRecipients                 transport close                      catch  AddressException ae                ae printStackTrace                      catch  MessagingException me                me printStackTrace                        Naturally  you ll want to do more in the catch blocks than print the stack trace as I did in the example code above    Remove the catch blocks to see which method calls from the JavaMail API throw exceptions so you can better see how to properly handle them      Thanks to  jodonnel and everyone else who answered   I m giving him a bounty because his answer led me about 95  of the way to a complete answer

[java] How can I send an email by Java application using GMail, Yahoo, or Hotmail?

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