update

ts/mail/routing/classes.email.config.ts

@@ -1,9 +1,9 @@
 import * as plugins from '../../plugins.js';
 
-/**
- * Email processing modes
- */
-export type EmailProcessingMode = 'forward' | 'mta' | 'process';
+import type { EmailProcessingMode } from '../delivery/interfaces.js';
+
+// Re-export EmailProcessingMode type
+export type { EmailProcessingMode };
 
 /**
  * Consolidated email configuration interface