MailGun alternative

Why choose Kingmailer over Mailgun?

With Kingmailer you don’t need to purchase a dedicated IP or “managed email service” or pay extra for “great delivery” to enjoy great deliverability. Great email delivery is already included in your plan, doesn’t matter which plan you use.

MailGun offers a free plan (Flex), which barely has any options, so we made the comparison with their Foundation plan, which costs $35 p/mo vs. Kingmailer’s $6 mo/plan.

This side-by-side comparison is based on features listed on MailGun’s pricing page:

FeaturesMailgun ($35 Plan)Kingmailer ($6 Plan)
Email APIs, SMTP Relay, and Webhooks
Suppression Management
Inbound Email Routing
Email Tracking and Analytics
99.99% Guaranteed Uptime SLA
1 Dedicated IP
Email Address Validations
Inbox Placement Tests
Send Time Optimization
Log Retention5 Days180 Days
Message Retention1 Day180 Days
Detailed Documentation
24/7 Ticket Support
Instant Chat SupportWhatsApp, Facebook messenger
Live Phone Support
Managed Deliverability Services
Rapid Fire Burst Sending
Custom Features
Contact us

Here’s a list of email types that we currently support and don’t support:

SupportedNot supported
Sign up emailsNewsletters
Password reset emailsPromotional emails
Notification emailsCold emails
Welcome emailsAnnouncements
Transactional emailsMarketing newsletters
Forum notificationsUnsolicited emails
Invoice & receipt emailsSpam
Not sure? Contact us

Compare our pricing

Emails per monthMailGun price /yearKingmailer price /year
Based on Mailgun’s Foundation Plan


Ease of Use4.7/54.4/5
Customer support4.7/54.2/5
Features & Functionality4.4/54.3/5
Value for Money5/54.3/5

Rated on Capterra Kingmailer vs MailGun


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.

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