configuration docs, make test

src/email/verification.rs

@@ -46,7 +46,7 @@ async fn verification(
 ) -> ServiceResult<()> {
     if let Some(smtp) = SETTINGS.smtp.as_ref() {
         let from = format!("mCaptcha Admin <{}>", smtp.from);
-        let reply_to = format!("mCaptcha Admin <{}>", smtp.reply_to);
+        let reply_to = format!("mCaptcha Admin <{}>", smtp.reply);
         const SUBJECT: &str = "[mCaptcha] Please verify your email";
 
         let plain_text = format!(

src/settings.rs

@@ -41,7 +41,7 @@ pub struct Captcha {
 #[derive(Debug, Clone, Deserialize)]
 pub struct Smtp {
     pub from: String,
-    pub reply_to: String,
+    pub reply: String,
     pub url: String,
     pub username: String,
     pub password: String,