The goal of this ticket is to implement an additional webadmin mailqueue management endpoint.
This should purge the mail queue (akka delete all mails from the queue).
You need to enhance the behaviour of MailQueueRoutes (deleteMails). You need a DELETE without query parameters to call ManageableMailQueue::clear.
You will need tests in MailQueueRoutesTest to show:
- The status corresponds to 204
- The mail queue is purged: all enqueued mails are removed
- Purging an empty queue is allowed.
This task is related to JAMES-2320 which should add a task for this.
If you need more details to implement this feature, we are willing to provide support. Don't hesitate to ask on https://gitter.im/apache/james-project. We are willing to provide guidance.