If you use JavaMail api provided by Sun then you can get the latest api from Sun Downloads.
\nJavaMail uses properties to load all configuration to the program.
\nYou must specify:
\n# The hostname or IP address of your SMTP server
\n mail.smtp.host=smtp.duke.java.sun.com <\/p>\n
# You get lots of debugging information if
\n # this is turned on. Comment this line to turn
\n # it off.
\n mail.debug=true <\/p>\n
# The To email address
\n ttapr2004.to=duke@duke.java.sun.com <\/p>\n
# The From email address
\n ttapr2004.from=duke@j2ee_fanclub.java.su… <\/p>\n
You can easily connect without authenticate to the SMTP server. But you may experience that you cannot send email from your java program: If your server requires authentication this igot it from internet private static final String SMTP_HOST_NAME = "myserver.smtphost.com"; private static final String emailMsgTxt = \/\/ Add List of Email address to who email needs to be sent to public static void main(String args[]) throws Exception { public void postMail(String recipients[], String subject, \/\/Set the host smtp address Authenticator auth = new SMTPAuthenticator(); session.setDebug(debug); <\/p>\n \/\/ create a message \/\/ set the from and to address InternetAddress[] addressTo = new InternetAddress[recipients.length]; \/\/ Setting the Subject and Content Type \/** public PasswordAuthentication getPasswordAuthentication() { Disclaimer – The Views Expressed In This Article Are Provided By A 3rd Party And May Not Match Those Of Our Website<\/p>\n","protected":false},"excerpt":{"rendered":" If you use JavaMail api provided by Sun then you can get the latest api from Sun Downloads. JavaMail uses properties to load all configuration to the program. You must specify: # The hostname or IP address of your SMTP server mail.smtp.host=smtp.duke.java.sun.com # You get lots of debugging information if # this is turned on. Comment this line to turn # it off. mail.debug=true # The To email address ttapr2004.to=duke@duke.java.sun.com # The From email address ttapr2004.from=duke@j2ee_fanclub.java.su… You can easily connect without authenticate to the SMTP server. But you may experience that you cannot send email from your java program: 1. Your ip may be blocked by firewall to Access SMTP Read more about Access SMTP Server – how can i authenticate mail whatever i am sending with the smtp server?<\/span>[…]<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-65","post","type-post","status-publish","format-standard","hentry","category-smtp-questions"],"_links":{"self":[{"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/posts\/65","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/comments?post=65"}],"version-history":[{"count":1,"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/posts\/65\/revisions"}],"predecessor-version":[{"id":66,"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/posts\/65\/revisions\/66"}],"wp:attachment":[{"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/media?parent=65"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/categories?post=65"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.smtp-server.net\/ja\/wp-json\/wp\/v2\/tags?post=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n1. Your ip may be blocked by firewall to Access SMTP Server<\/a>
\n2. Your SMTP server block senders address, to address and maybe your ip.
\n3. Your SMTP server requires authentication <\/p>\n
\n————————————–…
\npublic class SendMailUsingAuthentication { <\/p>\n
\n private static final String SMTP_AUTH_USER = "myusername";
\n private static final String SMTP_AUTH_PWD = "mypwd"; <\/p>\n
\n "Online Order Confirmation Message. Also include the Tracking Number.";
\n private static final String emailSubjectTxt = "Order Confirmation Subject";
\n private static final String emailFromAddress = "sudhir@javacommerce.com"; <\/p>\n
\n private static final String[] emailList = {
\n "mark@yahoo.com", "robin@javacommerce.com"}; <\/p>\n
\n SendMailUsingAuthentication smtpMailSender = new
\n SendMailUsingAuthentication();
\n smtpMailSender.postMail(emailList, emailSubjectTxt, emailMsgTxt,
\n emailFromAddress);
\n System.out.println("Sucessfully Sent mail to All Users");
\n } <\/p>\n
\n String message, String from) throws MessagingException {
\n boolean debug = false; <\/p>\n
\n Properties props = new Properties();
\n props.put("mail.smtp.host", SMTP_HOST_NAME);
\n props.put("mail.smtp.auth", "true"); <\/p>\n
\n Session session = Session.getDefaultInstance(props, auth); <\/p>\n
\n Message msg = new MimeMessage(session); <\/p>\n
\n InternetAddress addressFrom = new InternetAddress(from);
\n msg.setFrom(addressFrom); <\/p>\n
\n for (int i = 0; i < recipients.length; i++) {
\n addressTo[i] = new InternetAddress(recipients[i]);
\n }
\n msg.setRecipients(Message.RecipientType…. addressTo); <\/p>\n
\n msg.setSubject(subject);
\n msg.setContent(message, "text\/plain");
\n Transport.send(msg);
\n } <\/p>\n
\n * SimpleAuthenticator is used to do simple authentication
\n * when the SMTP server requires it.
\n *\/
\n private class SMTPAuthenticator
\n extends javax.mail.Authenticator { <\/p>\n
\n String username = SMTP_AUTH_USER;
\n String password = SMTP_AUTH_PWD;
\n return new PasswordAuthentication(username, password);
\n }
\n }
\n}
\n————————————–…<\/p>\n