Mailtrap vs Plunk: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Mailtrap
Mailtrap is an email testing and delivery platform that helps developers test, send, and track emails safely before reaching real users.
Plunk
Plunk is an open-source email platform that combines marketing, transactional, and broadcast emails into one affordable solution.
Mailtrap
Mailtrap is an email testing and delivery platform that helps developers test, send, and track emails safely before reaching real users.
Plunk
Plunk is an open-source email platform that combines marketing, transactional, and broadcast emails into one affordable solution.
Mailtrap
Safe email testing with sandbox environment
Email API and SMTP for sending real emails
HTML validation across email clients
Spam score checking before sending
Automated testing through API integration
Team sharing and collaboration tools
Multiple sandbox inboxes for different projects
Detailed delivery and engagement analytics
Support for all programming languages
Email template management and storage
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
Mailtrap
Mailtrap offers separate pricing for Email API/SMTP and Email Sandbox to match different needs.
For Email API/SMTP, the Free plan includes 3,500 emails per month with 1 domain and 3 days of logs. The Basic plan costs $15 monthly for 10,000 emails with 5 domains and 5 days of logs. The Business plan at $85 monthly offers 100,000 emails, up to 3,000 domains, 15 days of logs, and a dedicated IP address for better delivery. The Enterprise plan starts at $750 monthly with 1,500,000 emails and 30 days of logs.
For Email Sandbox, the Free plan provides 50 test emails monthly. The Basic plan costs $17 monthly for 500 test emails. The Team plan at $42 monthly includes 5,000 test emails and chat support. The Business plan costs $123 monthly for 50,000 test emails. The Enterprise plan at $498 monthly provides 5,000,000 test emails with priority support and single sign-on.
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.