diff --git a/lib/config/configConstants.ts b/lib/config/configConstants.ts
index 4e0c7ef..aee70f7 100644
--- a/lib/config/configConstants.ts
+++ b/lib/config/configConstants.ts
@@ -3,6 +3,9 @@ import { Config, ConfigSpecOf } from "./builder/config"
 import { Value } from "./builder/value"
 import { Variants } from "./builder/variants"
 
+/**
+ * Base SMTP settings, to be used by StartOS for system wide SMTP
+ */
 export const customSmtp = Config.of<ConfigSpecOf<SmtpValue>, never, never>({
   server: Value.text({
     name: "SMTP Server",
@@ -43,6 +46,9 @@ export const customSmtp = Config.of<ConfigSpecOf<SmtpValue>, never, never>({
   }),
 })
 
+/**
+ * For service config. Gives users 3 options for SMTP: (1) disabled, (2) use system SMTP settings, (3) use custom SMTP settings
+ */
 export const smtpConfig = Value.filteredUnion(
   async ({ effects, utils }) => {
     const smtp = await utils.getSystemSmtp().once()