Price starts at 5 USD per month. 99% Inbox. We offer privacy focused Transactional SMTP service, to send, receive and route/ forward emails. Buy Transactional SMTP with Bitcoin, USDT or Monero without KYC.
Sign up for free to test our Transactional SMTP service.
Pricing
| Emails /mo | Price /mo | Price /year |
|---|---|---|
| 5,000 | USD5 | USD49 |
| 10,000 | USD9 | USD79 |
| 20,000 | USD19 | USD159 |
| 40,000 | USD39 | USD389 |
✓ Clean IP address ✓ Outbound emails ✓ Inbound email routing ✓ Email dashboard ✓ WordPress SMTP plugin ✓ Email API ✓ 99.99% Uptime ✓ No-KYC ✓ No IP Leak
What is Transactional SMTP?
Transactional SMTP is a service that helps send specific types of emails, like order confirmations or password resets, from one server to another. It makes sure these important messages are delivered quickly and securely to the right inbox, ensuring smooth communication between businesses and their users.
About KingSMTP
KingSMTP.com (formerly known as Kingmailer.co, founded in 2017) is a Transactional SMTP service provider. It’s designed to help businesses reliably send emails such as order confirmations, password resets, or notifications, but it’s not intended for mass email campaigns or marketing.
Why KingSMTP?
Benefits and features
| Price per month | $5 (starts at) |
| Crypto Payments | Yes |
| Inbox rate % | 99% |
| Transactional Emails Focus | Yes |
| Bulk / Mass Emailing | No |
| API included | Yes |
| MX Routing | Yes |
| DKIM & SPF Support | Yes |
| Setup Time | 2 minutes |
| Free Trial | Yes |
| Customer Support | Email & Telegram |
| WordPress Plugin | Yes, available |
| Privacy Focused | Yes |
Reviews
| Ease of Use | ★★★★★ |
| Customer Service | ★★★★★ |
| Features | ★★★★★ |
| Value for Money | ★★★★★ |
| Likelihood to Recommend | ★★★★★ |
Mail Tester score
Our Transactional SMTP servers are top tier and have 10/10 score. You can verify this by sending test mails to Mail Tester.
KingSMTP dashboard
This is how your email dashboard will look like, after signing up.
Easy to troubleshoot emails
In your KingSMTP dashboard, you can click on each email to troubleshoot. KingSMTP logs and retains data of your emails, this is very useful when you need to troubleshoot your emails.
Here are a few screenshots to give you an idea:
This is already pre-configured in your account, give it a try.
Fast setup, easy integration
Time needed: 2 minutes
Get up and running today. Here’s what needs to get done:
- Activate your account
After you sign up, check your email, click a link, and you’re done.
- Set up your domain
Add a couple DNS records so we know you own the domain you claim to be sending emails from.
- Start sending
You can now send, receive or route emails, using the SMTP credentials or HTTP API.
FAQ
Yes, you can buy Transactional SMTP with Bitcoin, USDT, Ethereum, Doge or other crypto.
Paid accounts have no recipients limit.
Yes, only for transactional SMTP emails. Free trials have this limit by default, contact us to have this limit changed.
You can buy Transactional SMTP monthly or yearly plan. Starting from, per month $5 or per year $49.
Yes, you can use our SMTP service for MX routing.
No, we do not offer our service for sending mass / bulk mail.
Yes, after signing up, verifying your domain, your own SMTP username and password will be ready for you to use. All of your emails will be logged and easily viewed in your own email dashboard. You will also have your own Email API.
We have our own WordPress SMTP plugin, which is best optimized for using our service, it uses the HTTP protocol, so even if port 25 is closed, our SMTP plugin will still work. Kingmailer SMTP in the WordPress directory. It works with our HTTP API.
Yes. In order to be able to use our Transactional SMTP service, you will need to have your own domain. You will need to verify the domain and add a few DNS records (at least SPF and DKIM), before it’s good to go.
No. You can try the service for 7 days. No credit card required.
We have a 99% inbox rate.
Yes, this is possible. You will need to add our MX records to your DNS and configure routing. Don’t worry, we’ll help you with this.
No. We do not provide a way for customers to upload their subscribers onto our platform. Also, we do not allow mass mail/ bulk mail newsletters.
No, we do not allow any form of spam.