Hello @ngoctrung,

Thank you for sharing your question with the Klaviyo Community.

That is great to hear! Congratulations on getting that all set up.

Since you already set up a dedicated sending domain, you should already have a hosting provider.  Also, since you just moved onto a dedicated sending domain, it is paramount that you warm your sending infrastructure.

You would need to set up your domain to receive your response emails. It would be best to check in with your hosting provider to find the exact places to make this change if you have any questions.

Thanks and have a great day.