Send mail to selected users I want to send mail on webform submission to selected users. Suppose I'm user and admin must select users from my account that if I submit webform, then how many user's can get that notifications of my webform submission via mail?
Use simplenews module 

Simplenews


  Simplenews publishes and sends newsletters to lists of subscribers.
  Both anonymous and authenticated users can opt-in to different mailing
  lists. HTML email can be sent by adding Mime Mail module.
  
  Simplenews 7.x-1.0 has finally been released which includes a number
  of other important bugfixes, especially in the upgrade path.
  
  Features Sending nodes as newsletters to subscribers Multiple
  newsletter categories with separate settings Per category and
  multi-signup Blocks and Pages Subscriber management including
  mass-subscription and export Optional E-mail confirmations for
  anonymous users Customizable newsletter templates Support for HTML
  (including text alternative) newsletter when used in combination with
  a supported mail system module Views and Rules integration Support for
  multi-language newsletters