Buy transactional SMTP server
Looking to buy SMTP? We offer the best price/quality SMTP service in comparison to other SMTP providers. Our SMTP service is recommended for e-commerce sites, job sites, news organizations, membership sites, and online forums. You can use our SMTP service to send, receive and route / forward emails.

| Emails /mo | Price /mo | Price /year |
|---|---|---|
| 5,000 | N/A | USD49 |
| 10,000 | N/A | USD79 |
| 20,000 | N/A | USD159 |
| 50,000 | USD49 | USD489 |
| 100,000 | USD99 | USD990 |
Always know exactly what happened to your emails
Nothing is more frustrating than an email that just disappears. A customer says they never got your message. Your developer says it was sent. Nobody knows the truth.
With Kingmailer, every email is logged and searchable for 30 full days. Click on any message and see exactly what happened — delivered, opened, bounced, or blocked. In seconds. No guessing, no back and forth.
Here is what it looks like inside your dashboard:


Ready from day one, no setup needed.
This is how your dashboard looks like, super easy to monitor your emails:
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.

How does it work?
After signing up with Kingmailer you will have your own SMTP mail server, with SMTP username and password / Email API. You can use your new SMTP server and integrate with your web apps for example WordPress, Magento or iOS/Android apps.
The SMTP server is tied to your domain, make sure to add your domain first and verify its ownership by adding the SPF and DKIM records (this will be provided to you in your account).
Once you have added/verified your domain, enter the following into your SMTP configuration to start sending transactional emails:
Host: kingmailer.org
Type of encryption: TLS
SMTP Port: 587, 465, 25 or 2525
SMTP Authentication: Yes
SMTP username and password
After following these steps, all of your transactional emails will be relayed via Kingmailer and delivered to your customers inbox.
Did you search for: Buy SMTP, buy SMTP relay, mail relay service, buy mail relay or email delivery service? Just curious.
What’s the reason? Doing research on SMTP services, unhappy with your current SMTP service provider or …? Leave a comment and let us know, it will help us understand you better as a customer.
Well, either way you have landed on the right place.