Kickbox vs Mailgun Pricing (2026)

How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.

Kickbox Mailgun
Starts at Custom $15/mo
Number of plans 2 4
Free plan
Free trial
Pricing model usage-based usage-based

Pay As You Go

Custom
  • Volume Discounts
  • Unknown Verification Results Are Free
  • First Class Support
  • GDPR-Compliant Email Deliverability Platform

Enterprise

Custom
  • Volume Discounts
  • Unknown Verification Results Are Free
  • First Class Support
  • GDPR-Compliant Email Deliverability Platform

Free

$0/mo
  • 100 emails per day
  • Ticket support
  • RESTful email APIs and SMTP relay
  • 1 custom sending domain
  • Tracking, analytics, and webhooks
  • 2 API keys
  • Email analytics and reporting
  • 1 day log retention
  • 1 inbound route

Basic

$15/mo
  • No daily email limit
  • Monthly email overage options
  • RESTful email APIs and SMTP relay
  • 1 custom sending domain
  • Tracking, analytics, and webhooks
  • 2 API keys
  • Email analytics and reporting
  • 1 day log retention
  • 5 inbound routes

Foundation

Popular
$35/mo
  • Full access to RESTful email APIs and SMTP relays
  • 1,000 custom sending domains
  • Email template builder and API
  • Tracking, analytics, and webhooks
  • 5 days log retention
  • 1 day message retention
  • Full access to inbound routing

Scale

$90/mo
  • SAML SSO
  • 5,000 email validations
  • Dedicated IP pools
  • Send time optimization
  • Live phone & chat support
  • 30 days log retention
  • Up to 7 days message retention
  • Schedule and send analytics reports

Kickbox vs Mailgun FAQ

Which one is cheaper?
One or both use custom pricing, so it depends on your specific needs.
Can I use either one for free?
Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
How do they charge?
Both use a usage-based model, so the comparison is straightforward — it comes down to features and limits at each price point.
Which one is a better deal?
Depends on what you need. Kickbox: Sits in the mid-market of email verification tools, competing with ZeroBounce and NeverBounce on price and accuracy. The credit refund on unknown results is a differentiator that reduces risk for buyers who are skeptical about paying for inconclusive data. Mailgun: Mailgun sits in the mid-market of transactional email infrastructure — cheaper than SendGrid's higher tiers but not racing to the bottom like some SMTP relay providers. They're clearly targeting developers and growth-stage SaaS teams who care about API quality and deliverability, not marketers shopping on price alone.

Keep tabs on both.

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