title: Custom email notification on build completion in Azure DevOps
body: <p><strong>Background -</strong></p>
  <p>I have multiple jobs running under my Azure DevOps project. I have set the custom email notification on the build completion to send emails to specific users.</p>
  <p><strong>Issue -</strong></p>
  <p>This notification works properly for all the build pipelines which are created under this project. But I want to set the notification for some of the jobs/definitions only which starts with the some word.
  I can see the filter field <code>Definition name</code> and operator <code>contains</code> but I'm not able to find it's description on Microsoft documentation regarding it's usage.</p>
  <p>So what's the way to get build completion notifications for few jobs in which definition name contains specific word or starts with some name ?</p>