Mailtrap by Railsware

Just-in-time email delivery. Starting at $0/mo.

Home page Use Email Testing to inspect and debug emails in staging, dev, and QA environments before sending them to recipients in production. Email API/SMTP that does the job: reaches recipients’ inboxes just in time.
 Email infrastructure that ensures high deliverability by default. Leverage Actionable Analytics to control your email infrastructure performance. Catch and fix unexpected sending issues easy and fast.
Email API/SMTP

Use SMTP for quick and easy integration with your application to start sending emails in minutes. Or Email API for even better flexibility.

In-depth tracking

Dashboards with all key email metrics to provide you with a comprehensive and clear snapshot of the state of your emails.

Stats overview

Helicopter view and in-depth color-coded dashboards with key email metrics. To get full control over your email infrastructure performance.

Deliverability Alerts

Regular weekly reports with week-on-week comparison to monitor your deliverability trends and critical alerts if your metrics suddenly drop.

60-day logs

Use email logs for fast and in-depth troubleshooting. Check email preview, history, HTML, spam analysis and extended email info.

Proactive Support

Our tech support team consists of engineers and deliverability experts who’re constantly ready to assist you with any issue.

Fake SMTP

Catch testing emails from staging. Preview each email in your Mailtrap inbox. Never send test emails to the users by mistake.

QA Automation

Cover all your testing scenarios with Sandbox API. Integrate with your favorite environment. Run automated tests and validate each email.

HTML Check

Validate HTML/CSS of your email templates. See how different popular clients will treat your emails – on web, mobile, and desktop.

Region Availability

The available application locations for this add-on are shown below, and depend on whether the application is deployed to a Common Runtime region or Private Space. Learn More

  • Common Runtime
  • Private Spaces
Region Available
United States Available
Europe Available
Region Available Installable in Space
Virginia Available
Oregon Available
Frankfurt Available
Tokyo Available
Sydney Available
Dublin Available

Plans & Pricing

Need a larger plan? Let our customer success team help! Learn more.
    • Test emails per month 100
    • Sending limits per 10s 5
    • Inboxes 1
    • Team members 0
    • Max emails per inbox 50
    • API
    • Inbox email address
    • Email size 5 Bytes
    • Tech info and Bcc
    • Forwarded emails per month 0
    • Manual forwarding recipients 0
    • Projects 1
    • Priority support
    • Single sign-on (SSO)
    • Test emails per month 5,000
    • Sending limits per 10s 10
    • Inboxes 5
    • Team members 0
    • Max emails per inbox 200
    • API
    • Inbox email address
    • Email size 7 Bytes
    • Tech info and Bcc
    • Forwarded emails per month 100
    • Manual forwarding recipients 10
    • Projects 5
    • Priority support
    • Single sign-on (SSO)
    • Test emails per month 15,000
    • Sending limits per 10s 25
    • Inboxes 15
    • Team members 20
    • Max emails per inbox 400
    • API
    • Inbox email address
    • Email size 10 Bytes
    • Tech info and Bcc
    • Forwarded emails per month 500
    • Manual forwarding recipients 25
    • Projects 15
    • Priority support
    • Single sign-on (SSO)
    • Test emails per month 50,000
    • Sending limits per 10s 50
    • Inboxes 40
    • Team members 40
    • Max emails per inbox 600
    • API
    • Inbox email address
    • Email size 15 Bytes
    • Tech info and Bcc
    • Forwarded emails per month 2K
    • Manual forwarding recipients 100
    • Projects 40
    • Priority support
    • Single sign-on (SSO)
    • Test emails per month 100,000
    • Sending limits per 10s 100
    • Inboxes 80
    • Team members 80
    • Max emails per inbox 800
    • API
    • Inbox email address
    • Email size 20 Bytes
    • Tech info and Bcc
    • Forwarded emails per month 5K
    • Manual forwarding recipients 100
    • Projects 80
    • Priority support
    • Single sign-on (SSO)
    • Test emails per month 10,000,000
    • Sending limits per 10s 150
    • Inboxes 300
    • Team members 999
    • Max emails per inbox 1,000
    • API
    • Inbox email address
    • Email size 25 Bytes
    • Tech info and Bcc
    • Forwarded emails per month 10K
    • Manual forwarding recipients 300
    • Projects 300
    • Priority support
    • Single sign-on (SSO)
Install Mailtrap by Railsware
heroku addons:create mailtrap

To provision, copy the snippet into your CLI or use the install button above.

Mailtrap by Railsware Documentation