Jenkins CI, how to add Importance property to EMail header?

Question

I would like Jenkins emails to have "Importance" icon (in Outlook)

If I generate the email manually - I can achieve this by adding these properties in the SMTP header: Priority:High Importance:high

Is there way to add them into Jenkins email headers? I could not find any plugin or option doing that :(

Answer 1

There's a ticket requesting this feature in the Jenkins emailExt project: https://issues.jenkins.io/browse/JENKINS-69592?jql=labels%20%3D%20email-ext

One user listed a workaround in the comments there:

Code is just adding a presendScript presendScript: '''msg.addHeader("X-Priority", "1")''')