Mailtrap Email Sandbox

Web · API · paid plans from $17/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Mailtrap Email Sandbox is ranked #7 of 28 in email testing software on Freedom251. It runs on API, Web. There is a free plan. Paid plans start at $17/mo.

Mailtrap Email Sandbox plans and pricing

All plans

Free Free 50 test emails/month · 1 user · 1 sandbox · 10 emails per sandbox · no sandbox email address mailtrap.io · 4 Oct 2026

Basic $17/mo $168 billed annually ($14 /month) 500 test emails/month · 3 users · 1 sandbox · 50 emails per sandbox · 100 forwarded emails/mo · no chat support mailtrap.io · 4 Oct 2026

Team $42/mo $408 billed annually ($34 /month) 5,000 test emails/month · 5 users · 5 sandboxes · 200 emails per sandbox · priority support mailtrap.io · 4 Oct 2026

Business $123/mo $1,188 billed annually ($99 /month) 50,000 test emails/month · 50 users · 50 sandboxes · 2,000 forwarded emails/mo · no SSO mailtrap.io · 4 Oct 2026

Enterprise $498/mo $4,788 billed annually ($399 /month) Unlimited test emails · unlimited users · 300 sandboxes · SSO · priority support mailtrap.io · 4 Oct 2026

Compared on email testing software

Free plan: Yes
Paid from: $14/mo
Spam checks: Yes
Inbox testing: Yes
API access: Yes

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The record

Purpose: Email Sandbox captures SMTP traffic from development and staging environments so teams can inspect test messages without delivering them to real recipients.
Email analysis: Users can inspect message content and source, check spam scores, validate headers, and analyze HTML support across email clients.
Testing workflow: The product provides separate sandboxes for different environments or review servers and lets users group them into projects.
API and automation: The Sandbox API supports automated testing and the product page says API calls are unlimited.
Integration: Email Sandbox works with apps or frameworks that support SMTP, and the setup page offers 20+ code samples.
Compatibility previews: Device Previews can render emails as they appear in iOS Mail, Gmail, Outlook, and Apple Mail across mobile, desktop, and web.
Team use: The maker describes developers, QA teams, marketers, and managers as users, with shared sandboxes and selected forwarding to whitelisted recipients.
Not for delivery: Email Sandbox is a testing tool and is not designed to deliver emails to real email addresses.
Plan limits: The Free tier includes 50 test emails per month and one sandbox; Enterprise includes unlimited test emails and 300 sandboxes.
Integrations: Mailtrap lists integrations including Salesforce Email Sandbox, Heroku, Supabase, Vercel, and SDKs for languages such as Node.js, Python, PHP, Ruby, and Java.
Security: Mailtrap states that it holds ISO/IEC 27001:2022 certification and complies with GDPR.
Account security: The security page says Mailtrap enforces two-factor authentication for all users and supports TLS and HTTPS connections.
Company and history: Mailtrap says it was built by Railsware engineers in 2011 after a staging system accidentally sent test emails to real customers.
Support: The pricing page lists email support on Free, Basic, and Team, and email plus live chat on Business and Enterprise.
Price from: $17/mo

Where it ranks on Freedom251

Best Email Testing Software in 2026#7 of 28

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Sources

mailtrap.io/email-sandbox/· checked 4 Oct 2026
mailtrap.io/pricing/· checked 4 Oct 2026
mailtrap.io/integrate-with/· checked 4 Oct 2026
mailtrap.io/security-and-compliance/· checked 4 Oct 2026
mailtrap.io/about-us/· checked 4 Oct 2026