求助,java发送e_mail异常!!

[Jia的博客]

发送邮箱失败,提示如下
怎么解决啊


log4j:ERROR Could not find value for key log4j.appender.catalina.layout
log4j:ERROR Could not find value for key log4j.appender.debug
log4j:ERROR Could not instantiate appender named "debug".
org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.qq.com:25
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1421)
at org.apache.commons.mail.Email.send(Email.java:1448)
at com.ljf.www.common.utils.mail.MailUtils.send(MailUtils.java:40)
at com.ljf.www.common.utils.mail.MailUtils.main(MailUtils.java:64)
Caused by: javax.mail.AuthenticationFailedException: 530 Error: A secure connection is requiered(such as ssl). More information at http://service.mail.qq.com/cgi-bin/help?id=28

at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:826)
at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:761)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:685)
at javax.mail.Service.connect(Service.java:367)
at javax.mail.Service.connect(Service.java:226)
at javax.mail.Service.connect(Service.java:175)
at javax.mail.Transport.send0(Transport.java:253)
at javax.mail.Transport.send(Transport.java:124)
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1411)
... 3 more
log4j:ERROR No layout set for the appender named [catalina].
2016-02-23 12:14:03,650 INFO [com.ljf.www.common.utils.mail.MailUtils] - [e-mail] 发送邮件到 [e-mail] 失败


测试方法:
public static void main(String[] args) {
Mail mail = new Mail();
mail.setHost("smtp.qq.com"); // 设置邮件服务器
mail.setName("aa");
mail.setSender("[e-mail]");
mail.setReceiver("[e-mail]"); // 接收人
mail.setUsername("[e-mail]"); // 登录账号,一般都是和邮箱名一样
mail.setPassword("*********"); // 发件人邮箱的登录密码
mail.setSubject("aaaaaaaaa");
mail.setMessage("bbbbbbbbbbbbbbbbb");
new MailUtils().send(mail);
}

[Jia的博客]

邮箱开启smtp了