What is postmaster.dev?
postmaster.dev is a Unknown-based Payments provider.
Is postmaster.dev usable in China?
postmaster.dev is basically usable in mainland China, though latency may vary by ISP and time of day; have a backup proxy ready. The provider is headquartered in Unknown and primarily serves overseas markets.
How do I sign up for postmaster.dev?
Visit the postmaster.dev official site to complete sign-up. Registration typically requires an email (Gmail/Outlook recommended) and a payment method. Most overseas services accept credit card / PayPal / crypto. See the "Visit Official Site" button on this page for the direct link.