The domain approval process involves validation of various aspects of the sender domain so as to ensure that our customers don't face any issues post they start sending emails using Pepipost services.
Standard timelines are 2-3 hrs on a business working day post the completion of DNS changes and once your domain moved to “Under approval” status. If you wish to prioritize the same, you can buzz on live chat or send us an email on support@pepipost.com so that we can fast track the process with the help of our internal email compliance team.