java spring mail

references :

1. http://docs.spring.io/spring/docs/current/spring-framework-reference/html/mail.html

2. http://howtodoinjava.com/2013/05/27/send-email-with-spring-javamailsenderimpl-example/

3. smtp

    http://www.javacodegeeks.com/2010/07/java-mail-spring-gmail-smtp.html

4. mkyong

http://www.mkyong.com/spring/spring-sending-e-mail-with-attachment/