update

ts/mail/security/classes.dkimverifier.ts

@@ -1,5 +1,5 @@
 import * as plugins from '../../plugins.js';
-import { MtaService } from '../delivery/classes.mta.js';
+// MtaService reference removed
 import { logger } from '../../logger.js';
 import { SecurityLogger, SecurityLogLevel, SecurityEventType } from '../../security/index.js';
 
@@ -20,14 +20,13 @@ export interface IDkimVerificationResult {
  * Enhanced DKIM verifier using smartmail capabilities
  */
 export class DKIMVerifier {
-  public mtaRef: MtaService;
+  // MtaRef reference removed
   
   // Cache verified results to avoid repeated verification
   private verificationCache: Map<string, { result: IDkimVerificationResult, timestamp: number }> = new Map();
   private cacheTtl = 30 * 60 * 1000; // 30 minutes cache
 
-  constructor(mtaRefArg: MtaService) {
-    this.mtaRef = mtaRefArg;
+  constructor() {
   }
 
   /**