JUMP TOAbound APIIntroductionPostman CollectionAccess TokensCreate an access tokenpostDocumentsCreate documentspostList all documentsgetRetrieve a documentgetDelete a documentdeleteMailingsCreate a mailingpostList all mailingsgetRetrieve a mailinggetDelete a mailingdeletePayersCreate payerspostList all payersgetRetrieve a payergetUpdate a payerputDelete a payerdeleteUsersCreate a userpostList all usersgetRetrieve a usergetUpdate a userputRetrieve a mailingget https://sandbox-api.withabound.com/v3/users/{userId}/documents/{documentId}/mailings/{mailingId}Retrieves the details of an existing mailing.