Mailtrap intro


Safe Email Testing


Mailtrap is a fake SMTP server created for development teams to test email notifications by sending them from the development and staging environments without spamming real customers.

Mailtrap "catches" all test messages that users send and keeps them in its inbox, thus avoiding an embarrassing situation of accidentally blasting clients while testing an app. In addition to that, Mailtrap allows sharing inboxes with a team, enables manual- and auto-forwarding of notifications to other email addresses or domains, provides spam and blacklist reports, lets a user preview HTML content of an email and its source, showcases an email’s raw data, etc.

inboxes managed
3d graph
emails catched
Mailtrap customer lorin hochstein
Lorin Hochstein

Really impressed with @Mailtrap (from our friends at @Railsware). If you need to debug web apps that send email, check em out.

Mailtrap customer artur mamedov
Artur Mamedov

Great service! Thank you! Analysis for spam is really awesome!

Mailtrap customer josh moody
Josh Moody

Experimenting with @mailtrap for sending test emails from apps. Wow! I wish I'd discovered this a long time ago!

Mailtrap customer milan zoufal
Milan Zoufal

Making my life easier right now! great service #fakesmtp

Have you ever sent emails from staging to real customers? Yeah, we did that too... Before Mailtrap.
Yaroslav Lazor
Lightning Talk at Railsberry 2012


Mailtrap is an example of a tool which was initially created by the Railsware team for internal use and later shared with the wider dev community. The product idea came out naturally, and was based on the daily needs of our team. The Railswarians took over all stages of product development: from planning and design to implementation and support.

Mailtrap is available in both free and paid subscription plans. Though this product has already gained acknowledgement among developers globally, our team continues improving it based on the feedback we get from the numerous Mailtrap community.

Graphical Design
Interaction Design
System Integration


Ruby on Rails


Google Auth
New Relic
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All works
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