JBoss mail configuration

OpenKM is a J2EE application deployed in a JBoss application server. Some parameters have a default configuration that fit common user requirements but others depend on specific user configuration.

For specific JBoss issues, visit http://jboss.org/community/docs/DOC-10376.

OpenKM sometimes sends emails to users (because they have subscribed a document or folder, for example) and you have to check that this email configuration is correct. If you edit the file $JBOSS_HOME/server/default/deploy/mail-service.xml:

$ vim $JBOSS_HOME/server/default/deploy/mail-service.xml

You will see something like this:

<mbean code="org.jboss.mail.MailService" name="jboss:service=OpenKM">
  <attribute name="JNDIName">java:/mail/OpenKM</attribute>
  <attribute name="User">nobody</attribute>
  <attribute name="Password">password</attribute>
  <attribute name="Configuration">
    <!-- A test configuration -->
    <configuration>
      <!-- Change to your mail server prototocol -->
      <property name="mail.store.protocol" value="pop3"/>
      <property name="mail.transport.protocol" value="smtp"/>
      <!-- Change to the user who will receive mail  -->
      <property name="mail.user" value="nobody"/>
      <!-- Change to the mail server -->
      <property name="mail.pop3.host" value="pop3.your-domain.com "/>
      <!-- Change to the SMTP gateway server -->
      <property name="mail.smtp.host" value="smtp.your-domain.com "/>
      <!-- The mail server port -->
      <property name="mail.smtp.port" value="25"/>
      <!-- Change to the address mail will be from -->
      <property name="mail.from" value="noreply@your-domain.com"/>
      <!-- Enable debugging output from the javamail classes -->
      <property name="mail.debug" value="false"/>
    </configuration>
  </attribute>
  <depends>jboss:service=Naming</depends>
</mbean>

Typically you only have to configure these parameters:

• mail.smtp.host: this is the host where your mail server is located. Can be localhost if you have a local mail server installed (like Postfix)
• mail.from: all the mails sent by OpenKM will be from this email address. Can be in the form of noreply@your-domain.com.

But it depends on you own email configuration. If you run into problems, set the parameter mail.debug to true and review the JBoss log.

$ tail -f $JBOSS_HOME/server/default/log/server.log

For more info, read http://community.jboss.org/wiki/JavaMail.

Configuration for SMTP authentication

When we want to use a mail server via a secured SMTP server with authentication we should make some changes to mail-service.xml file (an example using the SMTP server gmail.com).

<mbean code="org.jboss.mail.MailService" name="jboss:service=OpenKM">
  <attribute name="JNDIName">java:/mail/OpenKM</attribute>
  <attribute name="User">USUARIO@gmail.com</attribute>
  <attribute name="Password">PASSWORD</attribute>
  <attribute name="Configuration">
    <!-- A test configuration -->
    <configuration>
      <!-- Change to your mail server prototocol -->
      <property name="mail.store.protocol" value="pop3"/>
      <property name="mail.transport.protocol" value="smtp"/>

      <!-- Change to the user who will receive mail  -->
      <property name="mail.user" value="USUARIO@gmail.com"/>

      <!-- Change to the mail server  -->
      <property name="mail.pop3.host" value="pop.gmail.com"/>

      <!-- Change to the SMTP gateway server -->
      <property name="mail.smtp.host" value="smtp.gmail.com"/>
      <property name="mail.smtp.starttls.enable" value="true" />
      <property name="mail.smtp.socketFactory.class" value="javax.net.ssl.SSLSocketFactory" />

      <!-- The mail server port -->
      <property name="mail.smtp.port" value="465"/>
      <property name="mail.smtp.socketFactory.port" value="465" />

      <!-- Change to the address mail will be from  -->
      <property name="mail.from" value="USUARIO@gmail.com"/>
      <property name="mail.smtp.user" value="USUARIO@gmail.com"/>
      <property name="mail.smtp.password" value="PASSWORD"/>
      <property name="mail.smtp.auth" value="true"/>

      <!-- Enable debugging output from the javamail classes -->
      <property name="mail.debug" value="false"/>
    </configuration>
  </attribute>
  <depends>jboss:service=Naming</depends>
</mbean>

Adding PKI certificate

Some mail servers need you to have installed a PKI certificate on the server. If you don't have it installed you'll get some error like this:

ERROR [STDERR] javax.mail.MessagingException: Exception reading response;
nested exception is:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

In this case, you must install the certificate.

• Download the file File:InstallCert.java
• Execute application

java InstallCert serverName

• Select option '1'. A file called jssecacerts is generated
• Overwrite jssecacerts to /usr/lib/jvm/java-6-sun/jre/lib/security/cacerts ( the path depends on your OS server and jdk version )
• You must restart jboss for this to take effect

For more information about installing certificates, read:

• http://blogs.oracle.com/gc/entry/unable_to_find_valid_certification
• http://www.grim.se/guide/jre-cert

For more info read:

• http://java.sun.com/products/javamail/javadocs/com/sun/mail/smtp/package-summary.html.
• jGuru: Fundamentals of the JavaMail API