Testing that an email is sent

Is there a way to test that an email is sent, and check the contents of it? Would be nice to do something like:

"A verification email is sent when the user has registered" in {
  MailPlugin.startCapturing()
  UserModule.registerNewUser(name = "Frodo", email = "frodo@example.com")
  val emails: List[Email] = MailPlugin.stopCapturingAndCollectResults()

  emails mustEqual List(
    Email(
      subject = "Welcome Frodo",
      recipient = "frodo@example.com",
      bodyText = "Here is your verifcation link: ______"
    )
  )
}

Or perhaps something more "functional"/safe:

"A verification email is sent when the user has registered" in {
  val emails: List[Email] = MailPlugin.captureMailsSentInBlock {
    UserModule.registerNewUser(name = "Frodo", email = "frodo@example.com")
  }

  emails mustEqual List(
    Email(
      subject = "Welcome Frodo",
      recipient = "frodo@example.com",
      bodyText = "Here is your verifcation link: ______"
    )
  )
}

Is it possible to do something like this at all right now? ie. Setting the plugin in testing/capture mode so that we can verify: (1) that en email is sent, (2) verify the contents of it.

Also, mock-mode must be on when running your test suite, right? (play.mailer.mock = yes)

I'm sorry if this is asked before, but I couldn't find anything in the manual or from searching.

Start by inspecting the MailPlugin API and the play.mailer.mock configuration mentioned in the issue. Determine how test-mode mail delivery currently works and define a supported way to capture sent emails, inspect their subject, recipients, and body, and verify that behavior in tests.