Mailgun vs Plunk: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Mailgun
Mailgun is a powerful email API service that helps developers send, receive, and track emails effortlessly with reliable delivery.
Plunk
Plunk is an open-source email platform that combines marketing, transactional, and broadcast emails into one affordable solution.
Mailgun
Mailgun is a powerful email API service that helps developers send, receive, and track emails effortlessly with reliable delivery.
Plunk
Plunk is an open-source email platform that combines marketing, transactional, and broadcast emails into one affordable solution.
Mailgun
RESTful API and SMTP relay for flexible integration
Real-time email tracking and analytics
Email validation and deliverability optimization
Inbound email routing and parsing
Webhook notifications for instant event updates
Multi-language SDK support (Python, PHP, Java, Ruby)
Dedicated IP addresses available
Email authentication (SPF, DKIM, DMARC)
Template management and suppression handling
99.99% uptime guarantee
Plunk
Three email types in one platform: transactional, automation, and broadcast
Open-source with self-hosting option
Built on Amazon Web Services for reliability
Simple API integration with multiple programming languages
Responsive email editor and HTML import
Unlimited contact storage with segmentation
Real-time tracking and analytics
Custom domain support
Usage-based pricing at $0.001 per email
Free plan with 3,000 emails monthly
Mailgun
Mailgun offers flexible pricing plans to suit different business needs and email volumes. The Free plan allows 100 emails per day, perfect for testing and small applications.
Paid plans include:
Flex Plan: Pay-as-you-go at $0.80 per 1,000 emails after 3 free months, ideal for unpredictable volumes
Foundation Plan ($35/month): 50,000 emails with basic features and 5-day log retention
Growth Plan ($80/month): 100,000 emails with enhanced support and 15-day log retention
Scale Plan ($90/month): 100,000 emails plus email validation, dedicated IPs, send time optimization, and 30-day logs
Enterprise: Custom pricing for high-volume senders with dedicated support and advanced features
All plans include unlimited users, API access, and basic tracking. Higher-tier plans add dedicated IPs, longer log retention, priority support, and advanced deliverability features. Overage pricing decreases with higher-tier plans.
Plunk
Plunk offers transparent and affordable pricing that scales with your needs.
The Free Plan costs nothing and includes 1,000 emails per month for each type - that's 1,000 automated emails, 1,000 transactional emails, and 1,000 campaign emails. You get unlimited contacts and can send from your own domain right from the start.
For businesses that need more volume, the Pay-As-You-Go Plan charges just $0.001 per email (that's $1 per 1,000 emails). This plan includes unlimited emails of all types, unlimited contacts, removes Plunk branding from your emails, adds email tracking and analytics, and still lets you send from your custom domain.
This pricing is significantly cheaper than competitors like Mailchimp or SendGrid, which can cost 3-5 times more for the same number of emails.