The recipient is not removed from the recipient list (but will not receive any further mailings) until the [remove](🔗) method is invoked or the recipient re-subscribes using a normal opt-in process.
In addition to the [add2](🔗) method, the mailing the recipient received before she/he unsubscribed will be preserved. See also [MailIdWebservice](🔗).
**Type**: void
**Parameters**
Name | Type | Value |
sessionId | String | ID of the session |
mailId | String | ID of the email |
**Return values**
**Code structure**