本文來自：高爽|Coder，原文地址：http://blog.csdn.net/ghsau/article/details/17839983，#javamail-1.4.5-oth-JPR

       JavaMail spec：http://www.Oracle.com/technetwork/java/javamail-1-149769.pdf

       JAF：http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-java-plat-419418.html#jaf-1.1.1-fcs-oth-JPR

       JavaMail下載好后，我們來看一下其主要內容：

javax.mail.session：上下文環境信息，如服務器的主機名、端口號、協議名稱等  javax.mail.Message：郵件模型，發送郵件和接收郵件的媒介，封裝了郵件的信息，如發件人、收件人、郵件標題、郵件內容等  javax.mail.Transport：連接郵件SMTP服務器，發送郵件  javax.mail.Store：連接郵件POP3、IMAP服務器，收取郵件   %20 %20 %20 通過這些類，最終就可以實現收發郵件，一個發送郵件的簡單示例：[java] view%20plain copy print?public class JavaMailTest1 {      public static void main(String[] args) throws MessagingException {          Properties props = new Properties();          // 開啟debug調試          props.setProperty("mail.debug", "true");          // 發送服務器需要身份驗證          props.setProperty("mail.smtp.auth", "true");          // 設置郵件服務器主機名          props.setProperty("mail.host", "smtp.163.com");          // 發送郵件協議名稱          props.setProperty("mail.transport.protocol", "smtp");                    // 設置環境信息          Session session = Session.getInstance(props);                    // 創建郵件對象          Message msg = new MimeMessage(session);          msg.setSubject("JavaMail測試");          // 設置郵件內容          msg.setText("這是一封由JavaMail發送的郵件！");          // 設置發件人          msg.setFrom(new InternetAddress("java_mail_001@163.com"));                    Transport transport = session.getTransport();          // 連接郵件服務器          transport.connect("java_mail_001", "javamail");          // 發送郵件          transport.sendMessage(msg, new Address[] {new InternetAddress("java_mail_002@163.com")});          // 關閉連接          transport.close();      }  }         最終運行后，郵件發送成功。由于我們開啟了debug調試，在控制臺可以看到JavaMail和服務器之間的交互信息記錄，可以發現，和Java Mail(一)：telnet實現發送收取郵件中telnet下的命令及服務器反饋信息基本一致。       創建Session對象時可能需要的屬性詳細信息如下：

Name	Type	Description
mail.debug	boolean	The initial debug mode. Default is false.
mail.from	String	The return email address of the current user, used by the InternetAddressmethodgetLocalAddress.
mail.mime.address.strict	boolean	The MimeMessage class uses the InternetAddress method parseHeader to parse headers in messages. This property controls the strict flag passed to theparseHeader method. The default is true.
mail.host	String	The default host name of the mail server for both Stores and Transports. Used if themail.protocol.host property isn't set.
mail.store.protocol	String	Specifies the default message access protocol. The SessionmethodgetStore() returns a Store object that implements this protocol. By default the first Store provider in the configuration files is returned.
mail.transport.protocol	String	Specifies the default message transport protocol. The SessionmethodgetTransport() returns a Transport object that implements this protocol. By default the first Transport provider in the configuration files is returned.
mail.user	String	The default user name to use when connecting to the mail server. Used if the mail.protocol.user property isn't set.
mail.protocol.class	String	Specifies the fully qualified class name of the provider for the specified protocol. Used in cases where more than one provider for a given protocol exists; this property can be used to specify which provider to use by default. The provider must still be listed in a configuration file.
mail.protocol.host	String	The host name of the mail server for the specified protocol. Overrides the mail.host property.
mail.protocol.port	int	The port number of the mail server for the specified protocol. If not specified the protocol's default port number is used.
mail.protocol.user	String	The user name to use when connecting to mail servers using the specified protocol. Overrides themail.user property.

       更新于2014.01.06       文中示例以及以后的示例中所用的郵箱賬戶均為在163申請的測試賬戶，分別為java_mail_001至java_mail_004，密碼均為javamail。       本文來自：高爽|Coder，原文地址：http://blog.csdn.net/ghsau/article/details/17839983，轉載請注明。