Backend API — Email Setup

Welcome emails are sent after successful user registration. Email sending is optional and only activates when SMTP environment variables are configured.

Environment variables (backend/.env):

• SMTP_HOST — SMTP server hostname
• SMTP_PORT — SMTP server port (587 recommended; 465 for secure)
• SMTP_USER — SMTP username
• SMTP_PASS — SMTP password
• SMTP_SECURE — true to force TLS (defaults to true when port is 465)
• EMAIL_FROM — Default From header, e.g. Vault <no-reply@yourdomain.com>

Behavior:

• If SMTP is not configured, registration still succeeds and the app logs a message indicating that email sending was skipped.
• When configured, a welcome email is sent to the new user asynchronously.

Implementation details:

• Mailer: backend/utils/email.js using Nodemailer
• Trigger: backend/controllers/authController.js inside register() after user creation

Install deps (from backend/):

npm install

Nodemailer is declared in backend/package.json and will be installed with the backend dependencies.