Netflix Clone – Full Stack Tutorial (Spring Boot + Angular + MySQL) - Gmail App Password 2025 - Fix SMTP Login Error in 3 Minutes

Getting "password incorrect" or "535 authentication failed" when sending emails through Gmail SMTP? This tutorial shows you how to generate Gmail App Passwords for SMTP authentication in Spring Boot, Node.js, Java, Python, or any backend framework. ⏱️ TIMESTAMPS 0:00 - Why Gmail blocks normal password login for SMTP 0:28 - Enable 2-Step Verification (Required first step) 1:26 - Generate 16-character App Password 1:43 - How to use the App Password for SMTP in your application 🔧 WHAT YOU'LL LEARN ✅ Enable 2-factor authentication on Gmail/Google Workspace ✅ Generate application-specific passwords (16-digit code) ✅ Configure SMTP for Spring Boot, Node.js, Python, Django, Laravel ✅ Fix "535 authentication failed" and "password incorrect" errors ✅ Security best practices for production apps 🔗 QUICK LINKS Generate App Password: https://myaccount.google.com/apppasswords (Must have 2-Step Verification enabled first) 📝 GMAIL SMTP SETTINGS (Copy These) • SMTP Server: smtp.gmail.com • Port: 587 (TLS recommended) or 465 (SSL) • Username: [email protected] • Password: 16-character app password (NOT your regular Gmail password) • Authentication: Required 💡 COMMON ERRORS & FIXES ❌ "535 Authentication Failed" → Make sure you're using the 16-char app password (no spaces) → Verify 2-Step Verification is enabled ❌ "Password Incorrect" → Don't use your regular Gmail password → Generate new app password at link above ❌ "Less Secure Apps" Error → App passwords replace this (old method deprecated) → Follow steps in video for 2025 method 🌐 MORE RESOURCES All Projects & Tutorials: https://btechdays.com/#/projects/ Spring Boot Interview Questions: https://btechdays.com/#/interview-questions?topic=springboot --- 💬 QUESTIONS? Drop them below! I respond to every comment. 📧 Business Inquiries: [email protected] 📱 Follow on Instagram: https://www.instagram.com/btechdays/ 💖 SUPPORT THIS CHANNEL If this solved your problem, consider supporting: • PayPal: https://www.paypal.me/btechdays • UPI: btechdays.pay@oksbi 🔖 Tags #GmailAppPassword #SMTP #SpringBoot #NodeJS #BackendDevelopment #GoogleWorkspace #GmailSMTP #AppPasswordSetup #BackendDevelopment #SMTPSetup #SpringBootEmail #NodejsEmail #GoogleSecurity #TwoStepVerification #EnableAppPassword #EmailService #SMTPAuthentication #TechTutorial #GoogleAccountSecurity #JavaDevelopers #AngularDevelopers #ProgrammingTutorial #BTechDays #WebDevelopment #CodingTips #DeveloperGuide