Lucee Server Email 发送异常

前两天有客户提出最近自动发送Email的功能好像不是很稳定，很多次mail-to-list都接收不了邮件，我在本地也做了多次尝试，这里记录一下。

将SMTP设置成一个未知的Host，使用发送邮件时，程序中Catch不到任何异常。后来我就在\WEB-INF\lucee\logs\mail.log文件中查看有没有错误信息：

未知SMPT Server时，mail.log会记录如下信息：

"ERROR","Thread-186","04/08/2016","21:09:00","","mail;Unknown SMTP host: smtp.mail.test.com;
  nested exception is:
	java.net.UnknownHostException: smtp.mail.test.com;Unknown SMTP host: smtp.mail.test.com;
  nested exception is:
	java.net.UnknownHostException: smtp.mail.test.com
	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1225):1225
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:322):322
	at javax.mail.Service.connect(Service.java:236):236
	at lucee.runtime.net.smtp.SMTPSender.run(Unknown Source):-1
"

Email用户名或密码不对时，mail.log会记录如下信息：

"ERROR","Thread-182","04/08/2016","20:18:37","","mail;553 Mail from must equal authorized user
;553 Mail from must equal authorized user

	at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1333):1333
	at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:906):906
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:535):535
	at lucee.runtime.net.smtp.SMTPSender.run(Unknown Source):-1
"

后来我打开Lucee的Web Administrator页面，进入Services – Tasks页面，就能看到type=mail的Task列表，这些都是自己发送异常的Email。Lucee会把这些发送异常的Email放在Task列表中，于第二天的那个时间再次尝试发送。