diff --git a/package.json b/package.json
index cdcf168..d3a8942 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "wasm:postbuild": "node build.js",
     "build": "npm run wasm:build && npm run wasm:postbuild"
   },
-  "version": "0.4.65",
+  "version": "0.4.66",
   "devDependencies": {
     "@types/bun": "latest",
     "prettier": "^3.3.3"
diff --git a/src/cryptos.rs b/src/cryptos.rs
index 07c51f4..f74989c 100644
--- a/src/cryptos.rs
+++ b/src/cryptos.rs
@@ -737,7 +737,8 @@ async fn fetch_public_keys(email_headers: EmailHeaders) -> Result<(serde_json::V
     let from_domain = from_headers[0].as_str();
     let from_re = Regex::new(r"@([^>\s]+)").unwrap();
     let from_domain = from_re
-        .captures(from_domain)
+        .captures_iter(from_domain)
+        .last()
         .and_then(|cap| cap.get(1))
         .map(|m| m.as_str().to_string())
         .ok_or_else(|| {