title: WSO2 IS different 'mail.smtp.from' per tenant?
body: <p>we are running WSO2 IS 5.3.0 with multiple tenants. The question is can we specify a different email smtp configuration per tenant such as the 'mail.smtp.from'? </p>
  
  <p>It appears like there is only one file in the IS server for configuring email 'from' address in:</p>
  
  <pre><code>&lt;IS_HOME&gt;/repository/conf/output-event-adapters.xml 
  </code></pre>
  
  <p>and the 'mail.smtp.from' from there gets applied to all outbound emails sent from IS, no ability to change this per tenant?</p>