Best Transactional SMTP Service

Start sending, receiving, routing/forwarding your emails, using our transactional email service. After signing up you will have your SMTP Username and SMTP Password. And also Email API.


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.


Okay, but can I send bulk / spam? Short answer: no.

This is what we support:

Transactional emailsYes
Email routingYes
Bulk marketing / NewslettersNo

Have questions?

What payment methods do you accept?

We accept Bitcoin, Ethereum, Dogecoin, PayPal and all major credit and debit cards. Your payment information is stored and processed securely by 2Checkout and never reaches our servers.

Can I buy Transactional SMTP here?

Yes.

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

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

Do you accept Bitcoin, Ethereum or Dogecoin?

Yes.

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?

Yes. We also have our own WordPress plugin, just search 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 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 14 days. No credit card required.

Can I ask for a refund?

Yes, no problem.

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.

Is it allowed to send spam?

No, we do not allow any form of spam.