diff --git a/middlewares/authorization.js b/middlewares/authorization.js
index 09495c8..382acbd 100644
--- a/middlewares/authorization.js
+++ b/middlewares/authorization.js
@@ -52,13 +52,16 @@ module.exports = {
         if(variables.authOidcEnabled) {
             oidc = req.oidc.isAuthenticated();
 
-            // Retrieve user info/verify user session is still valid
-            req.user = await req.oidc.fetchUserInfo().catch(() => {
-                res.redirect(302, `${req.headers['x-ingress-path'] ? req.headers['x-ingress-path'] : ''}/login`);
-            });
+            // Check if OIDC is used to authenticate
+            if(oidc) {
+                // Retrieve user info/verify user session is still valid
+                req.user = await req.oidc.fetchUserInfo().catch(() => {
+                    res.redirect(302, `${req.headers['x-ingress-path'] ? req.headers['x-ingress-path'] : ''}/login`);
+                });
 
-            if(!req.user) {
-                return;
+                if (!req.user) {
+                    return;
+                }
             }
         }
 
diff --git a/modules/mail.js b/modules/mail.js
index 19d5931..f22d1b1 100644
--- a/modules/mail.js
+++ b/modules/mail.js
@@ -20,20 +20,31 @@ const time = require('../utils/time');
 const bytes = require('../utils/bytes');
 
 /**
- * Create nodemailer transport
+ * Base SMTP config
  */
-const transport = nodemailer.createTransport({
+const smtpConfig = {
     host: variables.smtpHost,
     port: parseInt(variables.smtpPort),
     secure: variables.smtpSecure,
     tls: {
         rejectUnauthorized: false // Skip TLS Certificate checks for Self-Hosted systems
-    },
-    auth: {
+    }
+};
+
+/**
+ * Include SMTP auth if defined
+ */
+if(variables.smtpUsername !== '' && variables.smtpPassword !== '') {
+    smtpConfig.auth = {
         user: variables.smtpUsername,
         pass: variables.smtpPassword
-    }
-});
+    };
+}
+
+/**
+ * Create nodemailer transport
+ */
+const transport = nodemailer.createTransport(smtpConfig);
 
 /**
  * Mail module functions
diff --git a/package.json b/package.json
index 7ca286b..592a350 100644
--- a/package.json
+++ b/package.json
@@ -17,21 +17,21 @@
   "dependencies": {
     "cookie-parser": "^1.4.7",
     "ejs": "^3.1.10",
-    "express": "^5.1.0",
+    "express": "^5.2.0",
     "express-locale": "^2.0.2",
-    "express-openid-connect": "^2.19.2",
+    "express-openid-connect": "^2.19.3",
     "js-logger": "^1.6.1",
     "jsonwebtoken": "^9.0.2",
     "multer": "^2.0.2",
     "node-thermal-printer": "^4.5.0",
-    "nodemailer": "^7.0.10",
+    "nodemailer": "^7.0.11",
     "pdfkit": "^0.17.2",
     "qrcode": "^1.5.4",
     "undici": "^7.16.0"
   },
   "devDependencies": {
-    "@tailwindcss/cli": "^4.1.16",
+    "@tailwindcss/cli": "^4.1.17",
     "@tailwindcss/forms": "^0.5.10",
-    "tailwindcss": "^4.1.16"
+    "tailwindcss": "^4.1.17"
   }
 }