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Transactional Email Software

Kingmailer

Simple mail server and SMTP service for sending, receiving and routing email without developer expertise

By Kingmailer.co

About Kingmailer

Anyone who needs to push email out of an application, or take it in and pass it on, is the reader Kingmailer has in mind. It is a mail server and SMTP service that handles sending, receiving and routing or forwarding of messages.

Aimed at people who are not developers

Kingmailer compares itself with well-known email API providers, but pitches itself as easier to use and less costly. The company says it is meant for users who want an SMTP service to stay simple rather than arrive loaded with options, and that it is open to anyone, not only developers.

Sending, receiving and forwarding with a few clicks

Setup is described as a matter of a few clicks, after which a user can start sending mail, receive it on the same server, or route it onward to another address. The company claims an inbox delivery rate of 98 percent and says thousands of emails pass through the service every day.

Payment without identity checks

Kingmailer also notes that customers can pay with Bitcoin and that no know-your-customer check is involved.

TrustList summary

Kingmailer is a mail server and SMTP service for sending, receiving and routing or forwarding email. It is aimed at anyone, not only developers, and positions itself as a simpler alternative to larger email API providers. The service avoids piling on options and says thousands of emails are handled every day.

Main features

  • SMTP sending: Outgoing mail goes through a simple service.
  • Receiving: Receive mail on the same server.
  • Routing and forwarding: Email can be routed or forwarded with a few clicks.
  • Inbox delivery: The provider claims 98% of mail reaches the inbox.

Clients

Anyone who wants a plain SMTP service, including people who are not developers.

Key facts

  • Positioning: Simple and not bloated with options
  • Delivery claim: 98% inbox delivery

Summary written by TrustList from the business's own published information, Nov 2026.

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