update

test/suite/smtpclient_commands/test.ccmd-03.rcpt-to-multiple.ts

@@ -175,9 +175,16 @@ tap.test('CCMD-03: RCPT TO - should handle invalid recipients gracefully', async
     'valid3@example.com'
   ];
   
+  // Filter out invalid recipients before creating the email
+  const validRecipients = mixedRecipients.filter(r => {
+    // Basic validation: must have @ and non-empty parts before and after @
+    const parts = r.split('@');
+    return parts.length === 2 && parts[0].length > 0 && parts[1].length > 0;
+  });
+  
   const email = new Email({
     from: 'sender@example.com',
-    to: mixedRecipients.filter(r => r.includes('@') && r.split('@').length === 2),
+    to: validRecipients,
     subject: 'Mixed Valid/Invalid Recipients',
     text: 'Testing partial recipient acceptance'
   });