import java.util.Properties; import javax.mail.Authenticator; import javax.mail.Folder; import javax.mail.Message; import javax.mail.Part; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.URLName; import javax.mail.internet.InternetAddress; public class MainClass { public static void main(String[] args) throws Exception { URLName server = new URLName("protocol://username@host/foldername"); Session session = Session.getDefaultInstance(new Properties(), new MailAuthenticator()); Folder folder = session.getFolder(server); if (folder == null) { System.out.println("Folder " + server.getFile() + " not found."); System.exit(1); } folder.open(Folder.READ_ONLY); Message[] messages = folder.getMessages(); for (int i = 0; i < messages.length; i++) { System.out.println(messages[i].getSize() + " bytes long."); System.out.println(messages[i].getLineCount() + " lines."); } folder.close(false); } } class MailAuthenticator extends Authenticator { public MailAuthenticator() { } public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("username", "password"); } }