feat(mailer-smtp): add in-process security pipeline for SMTP delivery (DKIM/SPF/DMARC, content scanning, IP reputation)

ts/mail/delivery/index.ts

@@ -19,6 +19,5 @@ export * from './classes.mta.config.js';
 
 // Import and export SMTP modules as namespaces to avoid conflicts
 import * as smtpClientMod from './smtpclient/index.js';
-import * as smtpServerMod from './smtpserver/index.js';
 
-export { smtpClientMod, smtpServerMod };
+export { smtpClientMod };