KingSMTP logo

KingSMTP

by Kingmailer.co · Since 2017
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ActiveAvailable globallyCloud
Quick facts
VendorKingmailer.co
Year launched2017
StatusActive
LocationSuriname, South America.
Countries servedGlobal
Languages11
Integrations4+
Free tier
Free trialYES
Contact salesYES

About KingSMTP

KingSMTP is a mailing software from Kingmailer.co that focuses on email delivery solutions. It provides features such as SMTP relay, email tracking, and reporting so users can manage their email communications effectively. This platform is designed to help businesses ensure their emails reach the intended recipients without being blocked. KingSMTP also supports various email protocols, making it versatile for different applications. With a user-friendly interface and reliable analytics, customers can easily monitor their email performance. Key capabilities: SMTP relay Email tracking Reporting User-friendly interface Supports various protocols Best for: businesses that need reliable email delivery and performance tracking.

KingSMTP.com, established in 2017 and formerly known as Kingmailer.co, presents itself as a privacy-focused and dependable transactional SMTP service. The software is specifically tailored for businesses and developers who require a secure and reliable way to send critical, automated emails such as password resets, order confirmations, and notifications. It explicitly states that it is not intended for mass email campaigns or bulk marketing, which is a key differentiator from many competitors in the market. The user interface is notably straightforward and user-friendly, with a simple two-minute setup process. Users are guided through account activation and domain verification by adding DNS records like SPF and DKIM. The platform's dashboard is designed for ease of use, providing a clear overview of email activity and an efficient troubleshooting feature that allows users to click on individual emails to view detailed logs and data. The core features of KingSMTP are centered on delivering emails with a high degree of privacy, underscored by its no-KYC policy and the ability to accept cryptocurrency payments, including Bitcoin and USDT.

Pros & Cons

What users like
  • +Easy to set up and use without unnecessary complexity
  • +Affordable pricing compared to competitors
  • +High deliverability and inbox placement rate
  • +Supports crypto payments, ensuring privacy and flexibility
  • +Offers transactional email focus with strong reliability
What users flag
  • Free trial is only 7 days and restrictive
  • Lack of advanced analytics or marketing automation features
  • No 24/7 live chat or chatbot for instant help
  • Limited training resources beyond basic documentation
  • Not suitable for mass or bulk email campaigns
  • Some reviews mention it being marketed as email marketing despite being transactional-only now

Features

Key features

Privacy-focused
No KYC required for signup or usage.
Crypto Payments
Supports Bitcoin, USDT, Ethereum, Doge, and more.
Transactional Email Only
Built for order confirmations, password resets, and notifications, not bulk email.
Clean IP Addresses
Ensures high deliverability and reduces spam risks.
High Inbox Rate
Achieves about 99% inbox delivery success.

Additional features

Outbound SMTP
Send transactional emails through secure SMTP servers.
Inbound Email Routing
Receive and route emails using MX records.
Email Dashboard
View logs, track delivery, and troubleshoot email issues.
Domain Verification
Add SPF and DKIM DNS records for authentication.
WordPress Plugin
Dedicated plugin optimized for WordPress with HTTP protocol support.
Email API
Integrate email sending into apps via HTTP API.
Free Trial
7-day free trial available without credit card.
Fast Setup
Accounts can be activated and domains verified within about 2 minutes.
Pricing Plans
Multiple affordable yearly and monthly plans starting at $49/year.
Privacy Focus
No IP leak and encrypted payments for secure communication.

Pricing

Free trial
Free version
Request a quote
Promo Offer

Countries & Languages

Global
Countries served
11
Interface languages
9
Billing currencies

Interface languages

EnglishSpanishFrenchGermanItalianPortugueseDutchRussianChineseJapaneseKorean

Billing currencies

🇺🇸USD🇪🇺EUR🇬🇧GBP🇯🇵JPY🇦🇺AUD🇨🇦CAD🇨🇭CHF🇨🇳CNY🇸🇪SEK

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