Hello.

I am using Jenkins LTS version with email-ext and oic-auth plugin and also p4 plugin for VCS.

I have keycloak for OpenID auth, and here's oic-auth setting.

The keypoint is Full name field.

I think user name field is for loginid and full name field is for name.

So when I set Full name field to "name".

I can see my name at top section of Jenkins.

and then, I create a job for polling per change.

whenever change committed, this job will run and send email to developer using emailext plugin.

I use this pipeline syntax for this.

  post {
    always {
      emailext (
        recipientProviders: [developers()],
        subject: "test",
        body: "test"
      )
    }
  }

At this point,

there was a log like
Warning: user Fistname Lastname@company.com has no permission to view job #1091, but sending mail anyway
Failed to create e-mail address for Firstname
 

I think emailext plugin use fullname, not email and username field in oic-auth plugin.

So I set preferred_username for full name in the upper capture.