Postmarkapp alternative

Why choose Kingmailer over Postmark?

If you are here, than you are probably already familiar with the concept of “transactional emails” or “application generated emails”, such as password reset emails, user registration emails, e-commerce emails and perhaps you are looking at what other options are out there.

We offer our SMTP service for sending, receiving and routing emails. You can also pay with Bitcoin.

Our goal is to provide you with a simple platform, easy to use. All accounts are screened and approved manually to maintain our high inbox.


Just go to give you an idea how our product looks like, we have included a few screenshots, swipe left to scroll:

DNS configuration
Troubleshoot email
This shows a list of outbound emails, you can also view the list of inbound emails, filter per email etc. Lots of nice options.

Okay but, what is our price? You may ask.

Check the table below:

$5 /monthBuy now
$59 /yearBuy now
5,000 emails per month. 5,000 monthly unique recipients. For Routing & Transactional emails only. Not for sending mass mail or newsletters. Have questions? Email us We accept Bitcoin, Ethereum, Dogecoin, PayPal and all major cards. Check our Pricing page for more details.


How can I upgrade my account?

Send us an email to upgrade your account.

How does Kingmailer work?

Kingmailer is an email delivery and deliverability service that empowers businesses to easily send email from their (web) apps. It’s free to sign up and easy to get started.

How does your billing work?

You will be billed every 30 days. We accept PayPal and all major credit and debit cards. Your payment info is stored and processed securely by 2Checkout and never touches our servers.

How do I send emails with Kingmailer?

Since Kingmailer has both an HTTP API and an SMTP endpoint, you can choose to send the way you’d like. Both ways have their advantages… SMTP is easy to setup and often plug and play, but API is much more reliable at scale. If you’re building an application, we recommend using our HTTP API.

How many dedicated IP’s do I need? Can I get more?

You don’t actually need a dedicated IP when using Kingmailer, because great email delivery is already included in your plan, no additional investment is needed for this from your end.

How many users come with each plan?

Every Kingmailer plan (free and paid) allows you to add as many users as you need to your account at no additional cost. We think it’s much easier this way to manage the account with your team, without sharing login credentials.

I want to test Kingmailer first. How can I do that?

The free trial is ideal for those looking to test out the service. Keep in mind that the free trial has a max 20 emails per hour limit and a max 20 recipients limit. If you reach these limits, your email traffic will be paused. The free plan has 30 days of log retention so you can easily troubleshoot issues.


Leave a Reply