sending mail for select list field
Following rule should help you

{ "rules_send_email" : {
    "LABEL" : "Send Email After Save",
    "PLUGIN" : "reaction rule",
    "OWNER" : "rules",
    "REQUIRES" : [ "rules" ],
    "ON" : { "node_insert--send_email" : { "bundle" : "send_email" } },
    "DO" : [
      { "mail_to_users_of_role" : {
          "roles" : { "value" : { "3" : "3" } },
          "subject" : "Subject Test",
          "message" : "submittted value for Result field is [node:field-result]"
        }
      }
    ]
  }
}


The above rule will trigger email when a new content will be added For update also clone this rule and change the event to "After updating existing content"