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  <section>
<h2><a name="Monitor_via_Logging"></a>Monitor via Logging</h2>

    As most server softwares, James is using logs to report problems, track weird behaviors and audit
    what happens during run.

    In the Java ecosystem, it's frequent to use FQDN for logger names: it allows to enable logs for a subtree
    (i.e. org.apache.james.mailbox for logs about mailbox) or log from a single address
    (i.e. org.apache.james.mailbox.store.search.MessageSearches).

    These addresses can be actual packages or class names but they don't have to.

    Using class names makes loggers configuration brittle as classes can change quite often or being moved from
    one package to another. It's why you should be careful when using a specific logging address.

    However, for some important logging purpose, James defines stable addresses that are documented bellow:

    
<ul>
        
<li>org.apache.james.metrics will allow to output all server metrics to logs</li>
    </ul>

    <section>
<h2><a name="Spring_product"></a>Spring product</h2>

      
<p>Use the well-known log4j system.</p>

      
<p>The log4j.properties reside in the ./conf folder. You can edit it to change the
         logging level, per component.</p>

      
<p>You can change the logging level while the server is running via JMX
         (under org.apache.james/container).</p>

      
<p>All log files are written in the ./log folder. The ./log/james-sever.log gathers all the other logs.
        Log file rotation is also available.</p>


<div class="source">
<pre>
[root@srv001 log]# ls -alp
total 2892
drwxrwxrwx. 2 root root   4096 2010-11-07 07:58 ./
drwxrwxrwx. 7 root root   4096 2010-11-06 09:01 ../
-rw-r--r--. 1 root root      0 2010-11-06 09:24 dnsserver.log
-rw-r--r--. 1 root root    811 2010-11-06 17:37 domainlist.log
-rwxrwxrwx. 1 root root      0 2010-10-21 14:07 .dummy
-rw-r--r--. 1 root root     58 2010-11-06 09:24 fetchmail.log
-rw-r--r--. 1 root root    552 2010-11-07 08:27 imapserver.log
-rw-r--r--. 1 root root    959 2010-11-06 18:50 imapserver.log.2010-11-06
-rw-r--r--. 1 root root 677090 2010-11-07 08:29 james-server.log
-rw-r--r--. 1 root root 761987 2010-11-06 23:59 james-server.log.2010-11-06
-rw-r--r--. 1 root root   1941 2010-11-06 09:24 lmtpserver.log
-rw-r--r--. 1 root root      0 2010-11-06 09:24 mailboxmanager.log
-rw-r--r--. 1 root root   7935 2010-11-06 09:24 mailetcontainer.log
-rw-r--r--. 1 root root  61129 2010-11-07 08:26 mailet.log
-rw-r--r--. 1 root root  23393 2010-11-06 23:57 mailet.log.2010-11-06
-rw-r--r--. 1 root root    325 2010-11-06 09:24 mailserver.log
-rw-r--r--. 1 root root   5008 2010-11-06 09:24 mailstore.log
-rw-r--r--. 1 root root      0 2010-11-06 09:24 objectstore.log
-rw-r--r--. 1 root root   2001 2010-11-06 09:24 pop3server.log
-rw-r--r--. 1 root root    138 2010-11-07 08:18 remotemanager.log
-rw-r--r--. 1 root root    746 2010-11-06 17:57 remotemanager.log.2010-11-06
-rw-r--r--. 1 root root 615271 2010-11-07 08:29 smtpserver.log
-rw-r--r--. 1 root root 717888 2010-11-06 23:59 smtpserver.log.2010-11-06
-rw-r--r--. 1 root root     71 2010-11-06 09:24 usersrepository.log
</pre></div>

      
<p>Consult <a class="externalLink" href="https://github.com/apache/james-project/tree/master/server/apps/spring-app/src/main/resources/log4j.properties">log4j.properties</a> in GIT to get some examples and hints.</p>

      
<p>You can rise the logging level on protocols.</p>
      
<p>Set log4j.logger.james.smtpserver=DEBUG, SMTPSERVER</p>
      
<p>In the following log example, the 250 in front of it is the session id.. so you can now see the whole transaction flow even if you have many stuff currently going on.</p>
      
<p>As you see 5xx and 4xx stuff is logged with INFO .. the rest with DEBUG</p>
      
<p>You can do the same on IMAP, POP3.</p>


<div class="source">
<pre>
DEBUG 16:16:06,705 | james.smtpserver | 250 Lookup command handler for command: EHLO
DEBUG 16:16:06,706 | james.smtpserver | 250 org.apache.james.protocols.smtp.core.esmtp.EhloCmdHandler: 250 [noname. Hello test.de (localhost [127.0.0.1]), PIPELINING, ENHANCEDSTATUSCODES, 8BITMIME]
DEBUG 16:16:11,098 | james.smtpserver | 250 Lookup command handler for command: MAIL
ERROR 16:16:11,108 | james.smtpserver | 250 Error parsing sender address: &lt;gdgwewe: did not start and end with &gt; &gt;
INFO  16:16:11,110 | james.smtpserver | 250 org.apache.james.smtpserver.JamesMailCmdHandler: 501 [5.1.7 Syntax error in MAIL command]
DEBUG 16:16:14,442 | james.smtpserver | 250 Lookup command handler for command: MAIL
DEBUG 16:16:14,442 | james.smtpserver | 250 org.apache.james.smtpserver.JamesMailCmdHandler: 250 [2.1.0 Sender &lt;test@localhost&gt; OK]
DEBUG 16:16:22,385 | james.smtpserver | 250 Lookup command handler for command: RCPT
DEBUG 16:16:22,386 | james.smtpserver | 250 executing hook org.apache.james.smtpserver.AuthRequiredToRelayRcptHook
DEBUG 16:16:22,386 | james.smtpserver | 250 executing hook org.apache.james.smtpserver.SenderAuthIdentifyVerificationRcptHook
DEBUG 16:16:22,485 | james.smtpserver | 250 executing hook org.apache.james.protocols.smtp.core.PostmasterAbuseRcptHook
DEBUG 16:16:22,485 | james.smtpserver | 250 executing hook org.apache.james.smtpserver.fastfail.ValidRcptHandler
DEBUG 16:16:22,485 | james.smtpserver | 250 Sender allowed
DEBUG 16:16:22,485 | james.smtpserver | 250 org.apache.james.smtpserver.JamesRcptCmdHandler: 250 [2.1.5 Recipient &lt;go@localhost&gt; OK]
DEBUG 16:16:30,008 | james.smtpserver | 250 Lookup command handler for command: RCPT
ERROR 16:16:30,009 | james.smtpserver | 250 Error parsing recipient address: Address did not start and end with &lt; &gt; [to:&lt;d] [from:test@localhost]
INFO  16:16:30,009 | james.smtpserver | 250 org.apache.james.smtpserver.JamesRcptCmdHandler: 501 [5.5.2 Syntax error in parameters or arguments]
DEBUG 16:16:33,424 | james.smtpserver | 250 Lookup command handler for command: RCPT
DEBUG 16:16:33,424 | james.smtpserver | 250 executing hook org.apache.james.smtpserver.AuthRequiredToRelayRcptHook
DEBUG 16:16:33,424 | james.smtpserver | 250 executing hook org.apache.james.smtpserver.SenderAuthIdentifyVerificationRcptHook
DEBUG 16:16:33,425 | james.smtpserver | 250 executing hook org.apache.james.protocols.smtp.core.PostmasterAbuseRcptHook
DEBUG 16:16:33,425 | james.smtpserver | 250 executing hook org.apache.james.smtpserver.fastfail.ValidRcptHandler
DEBUG 16:16:33,425 | james.smtpserver | 250 Sender allowed
DEBUG 16:16:33,425 | james.smtpserver | 250 org.apache.james.smtpserver.JamesRcptCmdHandler: 250 [2.1.5 Recipient &lt;g@localhost&gt; OK]
DEBUG 16:16:35,072 | james.smtpserver | 250 Lookup command handler for command: DATA
DEBUG 16:16:35,076 | james.smtpserver | 250 org.apache.james.smtpserver.JamesDataCmdHandler: 354 [Ok Send data ending with &lt;CRLF&gt;.&lt;CRLF&gt;]
DEBUG 16:16:39,205 | james.smtpserver | 250 executing james message handler org.apache.james.protocols.smtp.core.esmtp.MailSizeEsmtpExtension@4b25ee49
DEBUG 16:16:39,206 | james.smtpserver | 250 executing james message handler org.apache.james.smtpserver.AddDefaultAttributesMessageHook@6c408893
DEBUG 16:16:39,206 | james.smtpserver | 250 executing james message handler org.apache.james.smtpserver.SendMailHandler@5636bc0a
DEBUG 16:16:39,206 | james.smtpserver | 250 sending mail
INFO  16:16:39,223 | james.smtpserver | 250 Successfully spooled mail Mail1291907799185-4af99ab3-9dd2-4d04-b8c9-37c12dd94686 from test@localhost on 127.0.0.1 for [go@localhost, g@localhost]
INFO  16:16:40,230 | james.mailetcontext | Storing mail Mail1291907799185-4af99ab3-9dd2-4d04-b8c9-37c12dd94686 in file://var/mail/address-error/
INFO &#xa0;16:16:30,009 | james.smtpserver | 250 org.apache.james.smtpserver.JamesRcptCmdHandler: 501 [5.5.2 Syntax error in parameters or arguments]

DEBUG 16:41:42,174 | james.smtpserver | 167 org.apache.james.smtpserver.JamesWelcomeMessageHandler disconnect=false
DEBUG 16:41:44,207 | james.smtpserver | 167 Lookup command handler for command: EHLO
DEBUG 16:41:44,209 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.esmtp.EhloCmdHandler: 250 [noname. Hello test (localhost [127.0.0.1]), PIPELINING, ENHANCEDSTATUSCODES, 8BITMIME]
DEBUG 16:41:44,214 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 16:42:12,720 | james.smtpserver | 167 Lookup command handler for command: EHLO
DEBUG 16:42:12,720 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.esmtp.EhloCmdHandler: 250 [noname. Hello t (localhost [127.0.0.1]), PIPELINING, ENHANCEDSTATUSCODES, 8BITMIME]
DEBUG 16:42:12,721 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 16:42:15,008 | james.smtpserver | 167 Lookup command handler for command: MAIL
INFO  16:42:15,010 | james.smtpserver | 167 org.apache.james.smtpserver.JamesMailCmdHandler: 501 [5.5.4 Usage: MAIL FROM:&lt;sender&gt;]
DEBUG 16:42:15,010 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 16:42:17,048 | james.smtpserver | 167 Lookup command handler for command: MAIL
DEBUG 16:42:17,048 | james.smtpserver | 167 org.apache.james.smtpserver.JamesMailCmdHandler: 250 [2.1.0 Sender &lt;&gt; OK]
DEBUG 16:42:17,048 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 16:42:19,088 | james.smtpserver | 167 Lookup command handler for command: RCPT
DEBUG 16:42:19,088 | james.smtpserver | 167 executing hook org.apache.james.smtpserver.AuthRequiredToRelayRcptHook
DEBUG 16:42:19,089 | james.smtpserver | 167 executing hook org.apache.james.smtpserver.SenderAuthIdentifyVerificationRcptHook
DEBUG 16:42:19,089 | james.smtpserver | 167 executing hook org.apache.james.protocols.smtp.core.PostmasterAbuseRcptHook
DEBUG 16:42:19,089 | james.smtpserver | 167 executing hook org.apache.james.smtpserver.fastfail.ValidRcptHandler
DEBUG 16:42:19,089 | james.smtpserver | 167 Sender allowed
DEBUG 16:42:19,089 | james.smtpserver | 167 org.apache.james.smtpserver.JamesRcptCmdHandler: 250 [2.1.5 Recipient &lt;nm@localhost&gt; OK]
DEBUG 16:42:19,090 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 16:42:19,767 | james.smtpserver | 167 Lookup command handler for command: DATA
DEBUG 16:42:19,774 | james.smtpserver | 167 org.apache.james.smtpserver.JamesDataCmdHandler: 354 [Ok Send data ending with &lt;CRLF&gt;.&lt;CRLF&gt;]
DEBUG 16:42:19,775 | james.smtpserver | 167 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 16:42:22,950 | james.smtpserver | 167 executing james message handler org.apache.james.protocols.smtp.core.esmtp.MailSizeEsmtpExtension@5585c0de
DEBUG 16:42:22,952 | james.smtpserver | 167 executing james message handler org.apache.james.smtpserver.AddDefaultAttributesMessageHook@2827f394
DEBUG 16:42:22,952 | james.smtpserver | 167 executing james message handler org.apache.james.smtpserver.SendMailHandler@3f81d405
DEBUG 16:42:22,952 | james.smtpserver | 167 sending mail
INFO  16:42:22,977 | james.smtpserver | 167 Successfully spooled mail Mail1291909342936-99263c11-c287-42e9-93a5-4f3468842d9f from null on 127.0.0.1 for [nm@localhost]

DEBUG 17:23:42,297 | james.smtpserver | 262 org.apache.james.smtpserver.JamesWelcomeMessageHandler disconnect=false
DEBUG 17:23:46,091 | james.smtpserver | 262 Lookup command handler for command: EHLO
DEBUG 17:23:46,093 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.esmtp.EhloCmdHandler: 250 [noname. Hello test (fileserver [192.168.0.254]), AUTH LOGIN PLAIN, AUTH=LOGIN PLAIN, PIPELINING, ENHANCEDSTATUSCODES, 8BITMIME]
DEBUG 17:23:46,098 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 17:23:54,029 | james.smtpserver | 262 Lookup command handler for command: MAIL
DEBUG 17:23:54,031 | james.smtpserver | 262 org.apache.james.smtpserver.JamesMailCmdHandler: 250 [2.1.0 Sender &lt;&gt; OK]
DEBUG 17:23:54,032 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 17:24:00,775 | james.smtpserver | 262 Lookup command handler for command: RCPT
DEBUG 17:24:00,776 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.AuthRequiredToRelayRcptHook
DEBUG 17:24:00,777 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.log.HookResultLogger@2a36bb87
INFO  17:24:00,777 | james.smtpserver | 262 org.apache.james.smtpserver.AuthRequiredToRelayRcptHook: result=2 (DENY)
INFO  17:24:00,777 | james.smtpserver | 262 org.apache.james.smtpserver.JamesRcptCmdHandler: 530 [5.7.1 Authentication Required]
DEBUG 17:24:00,778 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 17:24:17,828 | james.smtpserver | 262 Lookup command handler for command: RCPT
DEBUG 17:24:17,828 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.AuthRequiredToRelayRcptHook
DEBUG 17:24:17,828 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.log.HookResultLogger@2a36bb87
DEBUG 17:24:17,829 | james.smtpserver | 262 org.apache.james.smtpserver.AuthRequiredToRelayRcptHook: result=8 (DECLINED)
DEBUG 17:24:17,829 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.SenderAuthIdentifyVerificationRcptHook
DEBUG 17:24:17,829 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.log.HookResultLogger@2a36bb87
DEBUG 17:24:17,829 | james.smtpserver | 262 org.apache.james.smtpserver.SenderAuthIdentifyVerificationRcptHook: result=8 (DECLINED)
DEBUG 17:24:17,830 | james.smtpserver | 262 executing hook org.apache.james.protocols.smtp.core.PostmasterAbuseRcptHook
DEBUG 17:24:17,830 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.log.HookResultLogger@2a36bb87
DEBUG 17:24:17,830 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.PostmasterAbuseRcptHook: result=8 (DECLINED)
DEBUG 17:24:17,830 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.fastfail.ValidRcptHandler
DEBUG 17:24:18,670 | james.smtpserver | 262 Unknown user nm check if its an alias
INFO  17:24:18,724 | james.smtpserver | 262 Rejected message. Unknown user: nm@localhost
DEBUG 17:24:18,725 | james.smtpserver | 262 executing hook org.apache.james.smtpserver.log.HookResultLogger@2a36bb87
INFO  17:24:18,726 | james.smtpserver | 262 org.apache.james.smtpserver.fastfail.ValidRcptHandler: result=2 (DENY)
INFO  17:24:18,726 | james.smtpserver | 262 org.apache.james.smtpserver.JamesRcptCmdHandler: 550 [5.1.1 Unknown user: nm@localhost]
DEBUG 17:24:18,727 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
DEBUG 17:24:23,843 | james.smtpserver | 262 Lookup command handler for command: QUIT
DEBUG 17:24:23,843 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.QuitCmdHandler: 221 [2.0.0 noname. Service closing transmission channel]
DEBUG 17:24:23,844 | james.smtpserver | Dispose objects while closing channel 1431702401
DEBUG 17:24:23,845 | james.smtpserver | 262 org.apache.james.protocols.smtp.core.SMTPCommandDispatcherLineHandler disconnect=false
INFO &#xa0;17:24:00,777 | james.smtpserver | 262 org.apache.james.smtpserver.AuthRequiredToRelayRcptHook: result=2 (DENY)
INFO &#xa0;17:24:18,726 | james.smtpserver | 262 org.apache.james.smtpserver.fastfail.ValidRcptHandler: result=2 (DENY)
DEBUG 17:24:17,829 | james.smtpserver | 262 org.apache.james.smtpserver.SenderAuthIdentifyVerificationRcptHook: result=8 (DECLINED)
</pre></div>

      
<p>The default log4j.properties is taken hereafter for information.</p>


<div class="source">
<pre>
#  Licensed to the Apache Software Foundation (ASF) under one
#  or more contributor license agreements.  See the NOTICE file
#  distributed with this work for additional information
#  regarding copyright ownership.  The ASF licenses this file
#  to you under the Apache License, Version 2.0 (the
#  &quot;License&quot;); you may not use this file except in compliance
#  with the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing,
#  software distributed under the License is distributed on an
#  &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
#  KIND, either express or implied.  See the License for the
#  specific language governing permissions and limitations
#  under the License.

# See http://james.apache.org/server/config.html for usage

log4j.rootLogger=DEBUG

log4j.appender.CONS=org.apache.log4j.ConsoleAppender
log4j.appender.CONS.layout=org.apache.log4j.PatternLayout
log4j.appender.CONS.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.FILE.File=../log/james-server.log
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.MAILBOXMANAGER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.MAILBOXMANAGER.File=../log/mailboxmanager.log
log4j.appender.MAILBOXMANAGER.DatePattern='.'yyyy-MM-dd
log4j.appender.MAILBOXMANAGER.layout=org.apache.log4j.PatternLayout
log4j.appender.MAILBOXMANAGER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n


log4j.appender.IMAPSERVER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.IMAPSERVER.File=../log/imapserver.log
log4j.appender.IMAPSERVER.DatePattern='.'yyyy-MM-dd
log4j.appender.IMAPSERVER.layout=org.apache.log4j.PatternLayout
log4j.appender.IMAPSERVER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.MAILSERVER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.MAILSERVER.File=../log/mailserver.log
log4j.appender.MAILSERVER.DatePattern='.'yyyy-MM-dd
log4j.appender.MAILSERVER.layout=org.apache.log4j.PatternLayout
log4j.appender.MAILSERVER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.MAILET=org.apache.log4j.DailyRollingFileAppender
log4j.appender.MAILET.File=../log/mailet.log
log4j.appender.MAILET.DatePattern='.'yyyy-MM-dd
log4j.appender.MAILET.layout=org.apache.log4j.PatternLayout
log4j.appender.MAILET.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n


log4j.appender.MAILETCONTAINER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.MAILETCONTAINER.File=../log/mailetcontainer.log
log4j.appender.MAILETCONTAINER.DatePattern='.'yyyy-MM-dd
log4j.appender.MAILETCONTAINER.layout=org.apache.log4j.PatternLayout
log4j.appender.MAILETCONTAINER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n


log4j.appender.DNSSERVER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DNSSERVER.File=../log/dnsserver.log
log4j.appender.DNSSERVER.DatePattern='.'yyyy-MM-dd
log4j.appender.DNSSERVER.layout=org.apache.log4j.PatternLayout
log4j.appender.DNSSERVER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.REMOTEMANAGER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.REMOTEMANAGER.File=../log/remotemanager.log
log4j.appender.REMOTEMANAGER.DatePattern='.'yyyy-MM-dd
log4j.appender.REMOTEMANAGER.layout=org.apache.log4j.PatternLayout
log4j.appender.REMOTEMANAGER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.POP3SERVER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.POP3SERVER.File=../log/pop3server.log
log4j.appender.POP3SERVER.DatePattern='.'yyyy-MM-dd
log4j.appender.POP3SERVER.layout=org.apache.log4j.PatternLayout
log4j.appender.POP3SERVER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.SMTPSERVER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.SMTPSERVER.File=../log/smtpserver.log
log4j.appender.SMTPSERVER.DatePattern='.'yyyy-MM-dd
log4j.appender.SMTPSERVER.layout=org.apache.log4j.PatternLayout
log4j.appender.SMTPSERVER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.LMTPSERVER=org.apache.log4j.DailyRollingFileAppender
log4j.appender.LMTPSERVER.File=../log/lmtpserver.log
log4j.appender.LMTPSERVER.DatePattern='.'yyyy-MM-dd
log4j.appender.LMTPSERVER.layout=org.apache.log4j.PatternLayout
log4j.appender.LMTPSERVER.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.MAILSTORE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.MAILSTORE.File=../log/mailstore.log
log4j.appender.MAILSTORE.DatePattern='.'yyyy-MM-dd
log4j.appender.MAILSTORE.layout=org.apache.log4j.PatternLayout
log4j.appender.MAILSTORE.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.USERSREPOSITORY=org.apache.log4j.DailyRollingFileAppender
log4j.appender.USERSREPOSITORY.File=../log/usersrepository.log
log4j.appender.USERSREPOSITORY.DatePattern='.'yyyy-MM-dd
log4j.appender.USERSREPOSITORY.layout=org.apache.log4j.PatternLayout
log4j.appender.USERSREPOSITORY.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.OBJECTSTORAGE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.OBJECTSTORAGE.File=../log/objectstore.log
log4j.appender.OBJECTSTORAGE.DatePattern='.'yyyy-MM-dd
log4j.appender.OBJECTSTORAGE.layout=org.apache.log4j.PatternLayout
log4j.appender.OBJECTSTORAGE.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.FETCHMAIL=org.apache.log4j.DailyRollingFileAppender
log4j.appender.FETCHMAIL.File=../log/fetchmail.log
log4j.appender.FETCHMAIL.DatePattern='.'yyyy-MM-dd
log4j.appender.FETCHMAIL.layout=org.apache.log4j.PatternLayout
log4j.appender.FETCHMAIL.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

log4j.appender.DOMAINLIST=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DOMAINLIST.File=../log/domainlist.log
log4j.appender.DOMAINLIST.DatePattern='.'yyyy-MM-dd
log4j.appender.DOMAINLIST.layout=org.apache.log4j.PatternLayout
log4j.appender.DOMAINLIST.layout.ConversionPattern=%-5p %d{HH:mm:ss,SSS} | %c | %m%n

# logger for jackrabbit
log4j.logger.org.apache.jackrabbit=ERROR, CONS, FILE

# logger for activemq
log4j.logger.org.apache.xbean.spring=WARN, CONS, FILE
log4j.logger.org.apache.activemq=WARN, CONS, FILE

# logger for camel
log4j.logger.org.apache.camel=WARN, CONS, FILE
log4j.logger.org.springframework=WARN, CONS, FILE
log4j.logger.org.apache.james=INFO, CONS, FILE
#log4j.logger.james: set from default value WARN to INFO or even DEBUG to see (even) more logging
log4j.logger.james=WARN, CONS, FILE
log4j.logger=DEBUG, CONS, FILE

log4j.logger.james.mailboxmanager=INFO, MAILBOXMANAGER
log4j.logger.james.imapserver=INFO, IMAPSERVER
log4j.logger.james.mailserver=INFO, MAILSERVER
log4j.logger.james.mailetcontext=INFO, MAILET
log4j.logger.james.mailetcontainer=INFO, MAILETCONTAINER
log4j.logger.james.dnsserver=INFO, DNSSERVER
log4j.logger.james.remotemanager=INFO, REMOTEMANAGER
log4j.logger.james.pop3server=INFO, POP3SERVER
log4j.logger.james.smtpserver=INFO, SMTPSERVER
log4j.logger.james.lmtpserver=INFO, LMTPSERVER
log4j.logger.james.mailstore=INFO, MAILSTORE
log4j.logger.james.usersrepository=INFO, USERSREPOSITORY
log4j.logger.james.objectstorage=INFO, OBJECTSTORAGE
log4j.logger.james.fetchmail=INFO, FETCHMAIL
log4j.logger.james.domainlist=INFO, DOMAINLIST
</pre></div>

    </section>
  </section>
    <section>
<h2><a name="Guice_products_and_logging"></a>Guice products and logging</h2>
        
<p>James Guice products uses a different logging library: <a class="externalLink" href="http://logback.qos.ch/">logback</a>. Information about logback
            configuration can be found <a class="externalLink" href="http://logback.qos.ch/manual/configuration.html">here</a></p>

        
<p>Within James guice applications, we leverage the use of MDC in order to achieve structured logging, and better add context to the
        logged information. We furthermore ship <a class="externalLink" href="https://github.com/linagora/logback-elasticsearch-appender">Logback
        Elasticsearch Appender</a> on the classpath to easily allow direct log indexation in
        <a class="externalLink" href="https://www.elastic.co/elasticsearch">ElasticSearch</a></p>

        
<ul>Here is a sample <b>conf/logback.xml</b> configuration file for logback with the following pre-requisites:
            
<li>Logging both in an unstructured fashion on the console and in a structure fashion in ElasticSearch</li>
            
<li>Logging ElasticSearch Log appender logs in the console</li>
        </ul>

        
<div class="source">
<pre>
            &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
            &lt;configuration scan=&quot;true&quot; scanPeriod=&quot;30 seconds&quot;&gt;

                &lt;contextListener class=&quot;ch.qos.logback.classic.jul.LevelChangePropagator&quot;&gt;
                    &lt;resetJUL&gt;true&lt;/resetJUL&gt;
                &lt;/contextListener&gt;

                &lt;appender name=&quot;CONSOLE&quot; class=&quot;ch.qos.logback.core.ConsoleAppender&quot;&gt;
                    &lt;encoder&gt;
                        &lt;pattern&gt;%d{yyyy.MM.dd HH:mm:ss.SSS} %highlight([%-5level]) %logger{15} - %msg%n%rEx&lt;/pattern&gt;
                        &lt;immediateFlush&gt;false&lt;/immediateFlush&gt;
                    &lt;/encoder&gt;
                &lt;/appender&gt;

                &lt;appender name=&quot;ELASTIC&quot; class=&quot;com.linagora.logback.elasticsearch.ElasticsearchAppender&quot;&gt;
                    &lt;url&gt;http://elasticsearch:9200/_bulk&lt;/url&gt;
                    &lt;index&gt;logs-james-${NAMESPACE}-%date{yyyy.MM.dd}&lt;/index&gt;
                    &lt;type&gt;tester&lt;/type&gt;
                    &lt;includeMdc&gt;true&lt;/includeMdc&gt;
                    &lt;excludedMdcKeys&gt;host&lt;/excludedMdcKeys&gt;
                    &lt;errorLoggerName&gt;es-error-logger&lt;/errorLoggerName&gt;
                    &lt;properties&gt;
                        &lt;property&gt;
                            &lt;name&gt;host&lt;/name&gt;
                            &lt;value&gt;${HOSTNAME}&lt;/value&gt;
                            &lt;allowEmpty&gt;false&lt;/allowEmpty&gt;
                        &lt;/property&gt;
                        &lt;property&gt;
                            &lt;name&gt;severity&lt;/name&gt;
                            &lt;value&gt;%level&lt;/value&gt;
                        &lt;/property&gt;
                        &lt;property&gt;
                            &lt;name&gt;thread&lt;/name&gt;
                            &lt;value&gt;%thread&lt;/value&gt;
                        &lt;/property&gt;
                        &lt;property&gt;
                            &lt;name&gt;stacktrace&lt;/name&gt;
                            &lt;value&gt;%ex&lt;/value&gt;
                        &lt;/property&gt;
                        &lt;property&gt;
                            &lt;name&gt;logger&lt;/name&gt;
                            &lt;value&gt;%logger&lt;/value&gt;
                        &lt;/property&gt;
                    &lt;/properties&gt;
                    &lt;headers&gt;
                        &lt;header&gt;
                            &lt;name&gt;Content-Type&lt;/name&gt;
                            &lt;value&gt;application/json&lt;/value&gt;
                        &lt;/header&gt;
                    &lt;/headers&gt;
                &lt;/appender&gt;

                &lt;root level=&quot;WARN&quot;&gt;
                    &lt;appender-ref ref=&quot;CONSOLE&quot; /&gt;
                    &lt;appender-ref ref=&quot;ELASTIC&quot; /&gt;
                &lt;/root&gt;

                &lt;logger name=&quot;es-error-logger&quot; level=&quot;DEBUG&quot; additivity=&quot;false&quot;&gt;
                    &lt;appender-ref ref=&quot;CONSOLE&quot; /&gt;
                &lt;/logger&gt;

                &lt;logger name=&quot;org.apache.james&quot; level=&quot;DEBUG&quot; /&gt;

            &lt;/configuration&gt;
        </pre></div>

        
<p>Then a <a class="externalLink" href="https://www.elastic.co/kibana">Kibana</a> server can be setted up in order to display, search, filter logs, reusing directly
            data in elasticSearch in the following indexes: <b>logs-james-${NAMESPACE}-%date{yyyy.MM.dd}</b></p>
    </section>


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