Use mail.debug to collect JavaMail log for Agile Email Notification

You may always have email problem from Agile that users are able to get Inbox mail on Agile UI, but fail to get it through email, it happens randomly, sometime users receive and sometime not. And you see error "Actual Exception : null" from server log like below.

  	Actual Exception : null
	at com.agile.common.server.notification.SendEmail.send(SendEmail.java:307)
	at com.agile.common.server.notification.SendEmailListener.onMessage(SendEmailListener.java:43)
	at weblogic.ejb.container.internal.MDListener.execute(MDListener.java:585)
	at weblogic.ejb.container.internal.MDListener.transactionalOnMessage(MDListener.java:488)
	at weblogic.ejb.container.internal.MDListener.onMessage(MDListener.java:385)
	at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:4659)
	at weblogic.jms.client.JMSSession.execute(JMSSession.java:4345)
	at weblogic.jms.client.JMSSession.executeMessage(JMSSession.java:3821)

What does above email error mean? Nothing, absolutely nothing that makes sense. Then you may consult Oracle Agile Support to diagnose. You get instructions:

  • Enable Email Notification Debug for com.agile.pc.cmserver.notification and com.agile.common.server.notification
  • Use Telnet to verify the functionality of SMTP

It most of cases they are helpful and help you quickly find out the cause. But in complicated case that happens randomly, they will not.


JavaMail

One year ago I wrote a Document article in My Oracle Support about how to make Agile email to SMTP at non-default port 25. Setup SMTP Server Port To A Value Other Than The Default 25, To Receive Email Notifications From Agile Server (Doc ID 1468816.1)

Then if you think more, you may ask what other options we can set to JVM parameters to extend JavaMail's function. Agile invokes the simplest function (Transport.send) of JavaMail to deliver the email entry to SMTP without Authentication (Relay is used), so definitely you can use these options listed in this link. https://javamail.java.net/nonav/docs/api/


mail.debug

What I introduce here is to use mail.debug option to enable the debugging of email, including the handshake, authentication, delivery and disconnection.

DEBUG: JavaMail version 1.4.1
DEBUG: not loading file: /usr/java/jdk1.7.0_21/jre/lib/javamail.providers
DEBUG: java.io.FileNotFoundException: /usr/java/jdk1.7.0_21/jre/lib/javamail.providers (No such file or directory)
DEBUG: !anyLoaded
DEBUG: not loading resource: /META-INF/javamail.providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: !anyLoaded
DEBUG: not loading resource: /META-INF/javamail.address.map
DEBUG: not loading file: /usr/java/jdk1.7.0_21/jre/lib/javamail.address.map
DEBUG: java.io.FileNotFoundException: /usr/java/jdk1.7.0_21/jre/lib/javamail.address.map (No such file or directory)

When JavaMail is first time referenced, it will initialize all the default configuration from JRE, like you see from above log. It has nothing to do with Agile so let's leave it alone.

Then JavaMail will try to connect to remote SMTP at specified port 25. Default authentication is false.

DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth false
DEBUG SMTP: trying to connect to host "dummy-smtp-server.oracle.com", port 25, isSSL false
220-dummy-smtp-server-proxy.oracle.com ESMTP Oracle Corporation - Unauthorized Use Prohibited 
220 Ready at Thu, 30 Jan 2014 03:42:32 GMT
DEBUG SMTP: connected to host "dummy-smtp-server.oracle.com", port: 25

Next, JavaMail simulates the TELNET method to handshake with SMTP server. It verifies the sender and recipient if they are allowed to relay (internal user sends to internal user, internal user sends to external user, or external user sends to internal user).

EHLO agileServerhost
250-dummy-smtp-server-proxy.oracle.com Hello agileServerhost.oracle.com [1xx.1xx.1xx.1xx], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE 14680064
250-STARTTLS
250-DELIVERBY
250 HELP
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "SIZE", arg "14680064"
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "DELIVERBY", arg ""
DEBUG SMTP: Found extension "HELP", arg ""
DEBUG SMTP: use8bit false
MAIL FROM:
250 2.1.0 ... Sender ok
RCPT TO:
250 2.1.5 ... Recipient ok
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   "jie, chen (chenjie)" 

After that, it deliver the email message entry.

DATA
354 Enter mail, end with "." on a line by itself
Date: Thu, 30 Jan 2014 03:41:53 +0000 (GMT)
From: test@oracle.com
Reply-To: test@oracle.com
To: "jie, chen (chenjie)" 
Message-ID: <395344347.0.1391053313086.JavaMail.oracle@slag9320w5c>
Subject: Administrator (admin) has sent admin to you
MIME-Version: 1.0
Content-Type: text/plain ; charset="UTF-8"
Content-Transfer-Encoding: 7bit

admin has been sent to you by Administrator (admin).

Comments from Administrator (admin):
test 123

Access the following URL to see admin:
http://agileServerhost.oracle.com:80/Agile/PLMServlet?action=OpenEmailObject&classid=11605&objid=704

Sent by: Administrator (admin)
		
.
250 2.0.0 s0U3gWNJ015603 Message accepted for delivery

And finally quit.

QUIT
221 2.0.0 dummy-smtp-server-proxy.oracle.com closing connection


Scenario

Below is two sample error detected by JavaMail DEBUG.

javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
class javax.mail.SendFailedException: 550 5.7.1 Unable to relay

454 4.7.0 Temporary authorization failure
221 2.0.0 Service closing transmission channel
DEBUG SMTP: QUIT failed with 454
Comments:

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