* `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
* `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
* `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).
* `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
* `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
* `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).