$success = sent( {
               to              => 'send_to',
               account         => 'to_account',
               name            => 'name',
               subject         => 'subject',
               title           => 'title',
               
               link     => "/var/www/docs",
               name => "mydocs",

               link     => "/var/www/read",
               name => "letters",
               
               type     => 'docs',
               
                   });