Buy Transactional SMTP with Bitcoin

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 /moPrice /moPrice /year
5,000USD5USD49
10,000USD9USD79
20,000USD19USD159
40,000USD39USD389
Pay with Credit card, PayPal, Bitcoin, Binance Pay or USDT TRC20. Please sign up and test our service first. Contact us info@kingsmtp.com or via Telegram @ KingSMTPcom

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?

KingSMTP focuses on ensuring that your transactional emails are delivered quickly and reliably. By using dedicated SMTP servers with global distribution, we optimize delivery times and reduce latency, ensuring your messages reach inboxes without delay.

Our SMTP service is designed to integrate seamlessly with your existing email infrastructure. Whether you’re migrating from another SMTP provider or setting up a new email system, KingSMTP allows you to switch with minimal code changes, offering a smooth transition.

At KingSMTP, we prioritize the security of your emails. With TLS encryption, we ensure that both your authentication credentials and the contents of your emails are securely transmitted, protecting your data from potential breaches.

Benefits and features

Price per month$5 (starts at)
Crypto PaymentsYes
Inbox rate %99%
Transactional Emails FocusYes
Bulk / Mass EmailingNo
API included Yes
MX RoutingYes
DKIM & SPF SupportYes
Setup Time2 minutes
Free TrialYes
Customer SupportEmail & Telegram
WordPress PluginYes, available
Privacy FocusedYes

Reviews

Ease of Use★★★★★
Customer Service★★★★★
Features★★★★★
Value for Money★★★★★
Likelihood to Recommend★★★★★
KingSMTP has an overall rating of 4.5/5 on Capterra. View our profile here https://www.capterra.com/p/162836/Kingmailer/

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.

View your recent processed emails
Navigation
Meta data

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:

Incoming messages
Spam check
Spam status
Extra details of your message
Spam Check details
Spam score

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:

  1. Activate your account

    After you sign up, check your email, click a link, and you’re done.

  2. Set up your domain

    Add a couple DNS records so we know you own the domain you claim to be sending emails from.

  3. Start sending

    You can now send, receive or route emails, using the SMTP credentials or HTTP API.

FAQ

Can I buy Transactional SMTP with Bitcoin, USDT, Ethereum, Doge, or other crypto?

Yes, you can buy Transactional SMTP with Bitcoin, USDT, Ethereum, Doge or other crypto.

Is there a recipients limit?

Paid accounts have no recipients limit.

Is this only for Transactional SMTP emails?

Yes, only for transactional SMTP emails. Free trials have this limit by default, contact us to have this limit changed.

How much does the Transactional SMTP service cost?

You can buy Transactional SMTP monthly or yearly plan. Starting from, per month $5 or per year $49.

Can I use this SMTP Service for MX routing?

Yes, you can use our SMTP service for MX routing.

Can I use this SMTP service for sending mass / bulk mail?

No, we do not offer our service for sending mass / bulk mail.

Will I have my own SMTP username and password?

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.

Can I use this with a WordPress SMTP plugin?

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.

Do I need to have a domain for this?

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.

Do you offer forever free trials?

No. You can try the service for 7 days. No credit card required.

Will my emails go to the spam/junk folder?

We have a 99% inbox rate.

Can I send/receive emails in my email address?

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.

Can I upload my list here and start emailing?

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.

Is it allowed to send spam?

No, we do not allow any form of spam.