All plans include full SMTP support, high deliverability, and privacy-focused service. Pay with crypto — no KYC required.
Billed annually. All plans include the full feature set — no artificial limitations.
| Monthly volume | Price per year | Price per month |
|---|---|---|
| Up to 5,000 emails | $49 / year | Annual only |
| Up to 10,000 emails Popular | $79 / year | Annual only |
| Up to 20,000 emails | $159 / year | Annual only |
| Up to 50,000 emails | $489 / year | $49 / month |
| Up to 100,000 emails | $989 / year | $99 / month |
| 100,000+ emails | Custom pricing | Custom pricing |
Pay securely and privately with your preferred cryptocurrency. No banking restrictions, no KYC verification.
No feature tiers. Every customer gets the full KingSMTP experience.
Clean IP addresses, 99% inbox rate, 10/10 mail-tester score, optimized sending infrastructure.
No-KYC service, no IP leaks, we don't scan your emails, TLS encryption on all connections.
Simple SMTP credentials, RESTful API, WordPress plugin, support for all major platforms.
View all sent/received emails, detailed delivery tracking, spam score analysis, full SMTP logs.
Inbound and outbound email routing. Receive emails too — add our MX records to your DNS.
Real humans via email and Telegram. Fast, personal assistance whenever you need it.
KingSMTP is designed for transactional emails — automated messages triggered by user actions or system events.
Test everything before you pay. No credit card, no KYC, no strings attached.
Everything you need to know before getting started.
Choose a plan based on your monthly email volume. If you exceed your plan limit, contact us to upgrade. We'll work with you to find the right solution and won't cut off your service without notice.
Yes. We accept Bitcoin, USDT, Monero, and other cryptocurrencies. We also accept credit cards and PayPal if you prefer traditional payment methods.
No. All plans include free setup and configuration assistance. We'll help you get your DNS records right and your first email sent.
Contact us and we'll help you upgrade to a higher tier. We monitor usage and will reach out proactively if you're approaching your limit so you're never caught off guard.
Yes. If you're not satisfied within the first 7 days, contact us for a full refund. Refunds for crypto payments are processed in USDT/BTC at the current exchange rate.
Yes. We have a dedicated WordPress SMTP plugin that works even if your host blocks port 25. It uses HTTP protocol for maximum reliability and is available in the WordPress plugin directory.
Transactional emails are triggered by user actions — password resets, order confirmations, account alerts. Marketing emails are promotional content sent to subscriber lists. We only support transactional emails.
Some industries pose higher risks to email reputation (gambling, crypto, adult content, etc.). We may offer different pricing for these businesses to account for additional monitoring and reputation management. Contact us to discuss your specific case.
Sending over 100,000 emails per month? Contact us for custom pricing, dedicated IP addresses, priority support, and volume discounts.