The mailing must be of the type regular.
**Type**: void
**Parameters**
| Name | Type | Value |
| sessionId | String | ID of the session |
| mailingId | long | ID of the mailing |
| maxMailsPerHour | int | Maximum sending rate (mails per hour) for the mailing—must be greater than 1000<br><br>The value -1 means **No throttling**. |
**Return values**
**Code structure**