Email cound not be sent in web app

Hi friends,

I have some code that sends out an email from GMail. It is working on a command line program but it does not work in a Servlet. It throws an exception saying something like AuthenticationException.
But I double checked the code, it is almost the same for both command line program and Servlet. I don't understand why it behaves so strangely!

Any idea?

Thanks.

It's hard to advise about this without seeing the full stack trace or the code that causes it. For starters, make sure you#re doing things exactly as described in http://www.oracle.com/technetwork/java/faq-135477.html#gmail

I got the following exception:

com.techline.EmailSendingException: javax.mail.AuthenticationFailedException
	at com.techline.EmailSender.send(EmailSender.java:91)
	at com.techline.AccessoryServlet.doPost(AccessoryServlet.java:294)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Unknown Source)
Caused by: javax.mail.AuthenticationFailedException
	at javax.mail.Service.connect(Service.java:319)
	at javax.mail.Service.connect(Service.java:169)
	at javax.mail.Service.connect(Service.java:118)
	at javax.mail.Transport.send0(Transport.java:188)
	at javax.mail.Transport.send(Transport.java:118)
	at com.techline.EmailSender.send(EmailSender.java:87)
	... 15 more

I would set JavaMail's debug mode on and send an e-mail in both environments: the one where authentication is successful and the one where it fails. See what is different.

Paul Clapham wrote:I would set JavaMail's debug mode on and send an e-mail in both environments: the one where authentication is successful and the one where it fails. See what is different.

Thanks, I will try in the debug mode then let you know.