Unsubscribes subscriber from newsletter.
            
Namespace: CMS.NewslettersAssembly: CMS.Newsletters (in CMS.Newsletters.dll) Version: 8.0.0.0 (8.1.5347.20411)
Parameters
- sni
 - Type: CMS.Newsletters SubscriberNewsletterInfo
Subscription object 
- sendConfirmationEmail
 - Type: 
System Boolean
Indicates if confirmation e-mail should be sent 
See Also