[Pleroma Job Queue](https://git.pleroma.social/pleroma/pleroma_job_queue) configuration: a list of queues with maximum concurrent jobs.
Pleroma has the following queues:
+
* `federator_outgoing` - Outgoing federation
* `federator_incoming` - Incoming federation
* `mailer` - Email sender, see [`Pleroma.Mailer`](#pleroma-mailer)
+* `transmogrifier` - Transmogrifier
* `scheduled_activities` - Scheduled activities, see [`Pleroma.ScheduledActivities`](#pleromascheduledactivity)
Example: