Everything you need
to get you started
Mailsnag lets you build resilient SMTP integrations while protecting you from spamming customers during testing on QA and Staging environments. It is like Chaos Monkey for SMTP integrations..
Protect Your Customers
Avoid sending test emails to real customers. Mailsnag will NEVER deliver emails
Intermittent Error Simulation
Ensure your code handles transient SMTP errors
Ensure slow SMTP server does not cause degraded experience for your customers
Analyze Raw Emails
Dig deeper by validating headers and raw source
Share email samples with stakeholders and get feedback faster
See in Different Clients
Forward emails to yourself and see with your preferred email client
Create New Mailbox
You can get started with our generous free plan - no credit card needed.
Configure Your Application
Use provided SMTP host, port, username, and password for your integration.
All Emails In One Place
None of the emails are delivered to actual recipient. Instead all of them are available in your mailbox.