---
title: containsAll
slug: campaign/docs/containsall-unsubscribews
docTags: 
createdAt: 2026-07-02T19:01:46.737Z
---

**Type**: Boolean\[ ]

**Parameters**

| Name         | Type       | Value                 |
| ------------ | ---------- | --------------------- |
| sessionId    | String     | ID of the session     |
| recipientIds | String\[ ] | IDs of the recipients |

**Return values**

For each recipient:

- true: Recipient is found on at least one unsubscribe list
- false: Recipient is not found on any unsubscribe list

**Code structure**

```javascript
boolean[] containsAll(String sessionId, String[] recipientIds)
```