---
title: sendMails
slug: campaign/docs/sendmails
docTags: 
createdAt: 2026-07-02T19:01:47.121Z
---

This method is only applicable to mailings of the type event.

:::hint{type="info"}
- **Notes**
  If a target group is defined for the mailing, the mailing will be sent only if the recipient meets the target group criteria.
- The actual mail is sent asynchronously. So, you should not delete the recipients immediately after invoking this method.
:::

**Type**: int\[ ]

**Parameters**

| Name            | Type      | Value                                                                                                                                                        |
| --------------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| sessionId       | String    | ID of the session                                                                                                                                            |
| mailingId       | long      | ID of the mailing                                                                                                                                            |
| recipientListId | long      | ID of the recipient list<br /><br />This recipient list must be assigned to the given mailing. See also [getRecipientListIds](docId\:cRywr-vdpCnI6Au1pIWrL). |
| recipientIds    | String\[] | IDs of the recipients                                                                                                                                        |

**Return values**

For each recipient:

- 0: if the mail has been spooled
- 1: if the recipient is blocked
- 2: if the recipient is unsubscribed
- 3: if the recipient was not found
- 4: if the recipient list is invalid (the recipient list is not assigned to the given mailing)
- 5: if the recipient is blocked by the mailing's target group
- 6: if the recipient has caused too many bounces

**Code structure**

```java
int[] sendMails(String sessionId, long mailingId, long recipientListId, String[] recipientIds)
```