Sending mails using mail transport in wso2esb

Scenario:

If any error occurs in a message mediation flow, Administrator has to send mail to manager.

Axis configuration

To send mails, we use mail transport. Enable the 'MailTransportSender' to send emails in specific scenarios.

@axis2.xml;

<transportSender name="mailto" class="org.apache.axis2.transport.mail.MailTransportSender">
        <parameter name="mail.smtp.host">smtp.gmail.com</parameter>
       <parameter name="mail.smtp.port">587</parameter>
       <parameter name="mail.smtp.starttls.enable">true</parameter>
       <parameter name="mail.smtp.auth">true</parameter>
       <parameter name="mail.smtp.user">admin@abc.com</parameter>
        <parameter name="mail.smtp.password">XXXXX</parameter>
       <parameter name="mail.smtp.from">Admin</parameter>
  </transportSender>

Proxy configuration

 <proxy xmlns="http://ws.apache.org/ns/synapse"
       name="FileProxy"
       transports="https,http,vfs"
       statistics="disable"
       trace="disable"
       startOnLoad="true">
    <target faultSequence="sendErrMailSequence">

       <inSequence>
.................
</inSEquence>
</proxy>

To get  a mail content in HTML format, we need to add HTML message formatter in axis2.xml
<messageFormatter contentType="text/html" class="org.apache.axis2.transport.http.ApplicationXMLFormatter"/>


SendErrMailSequence  configuration

<sequence xmlns="http://ws.apache.org/ns/synapse" name="sendErrMailSequence">
   <property name="messageType" value="text/html" scope="axis2"/>
   <property name="ContentType" value="text/html" scope="axis2"/>
  <property name="Subject" value=" Error occured" scope="transport"/>
   <property name="OUT_ONLY" value="true"/>
 <payloadFactory media-type="xml">
            <format>
               <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
                  <soapenv:Body>
                     <ErrorMessage xmlns=""> Please check endpoint errors</ErrorMessage>
                  </soapenv:Body>
               </soapenv:Envelope>
           </format>
         </payloadFactory>
   <send>
      <endpoint name="MailEpr">
         <address uri="mailto:manager@abc.com"/>
      </endpoint>
   </send>

</sequence>