Update email-handler.ts to remove default SMTP configuration values

- Cleared default values for SMTP environment variables in email-handler.ts to enhance security and ensure sensitive information is not hardcoded.
- This change encourages the use of environment-specific configurations for better deployment practices.

src/utils/email-handler.ts

@@ -7,12 +7,12 @@ import path from 'path';
 
 // Environment variables
 const {
-  SMTP_HOST = 'mailcowdockerized-postfix-mailcow-1',
-  SMTP_PORT = '587',
-  SMTP_USER = 'test@devnet365.eu',
-  SMTP_PASS = 'Liable7-Flavored6-Path0-Diligent0-Fragrant7',
-  ADMIN_EMAIL = 'info@devnet365.eu',
-  WEBSITE_NAME = '365DevNet Support',
+  SMTP_HOST = '',
+  SMTP_PORT = '',
+  SMTP_USER = '',
+  SMTP_PASS = '',
+  ADMIN_EMAIL = '',
+  WEBSITE_NAME = '',
 } = process.env;
 
 // Email configuration