---
title: MailIdWebservice
slug: campaign/docs/mailidwebservice
docTags: 
createdAt: 2026-07-02T19:01:45.941Z
---

A **mail ID** identifies a single mail that has been sent to a single recipient. It is the aggregation of these three IDs: **mailing ID**, **recipient list ID** and **recipient ID**. The **mail ID** can be appended to a tracked link.

| Method             | Description                                                  |
| ------------------ | ------------------------------------------------------------ |
| getMailingId       | Queries the mailing ID.                                      |
| getMandatorId      | Queries the client's ID.                                     |
| getRecipientId     | Queries the ID of a recipient that received a mail.          |
| getRecipientListId | Queries the ID of the recipient list a recipient belongs to. |

## Using mail IDs

To include the **mail ID** into a tracking link, use the special field function .

**Example**

```javascript
http://www.example.com/mypage.php?myId={bmMailId}
```

Within **mypage.php**, the parameter **myId** contains the mail ID.