Blog
Guides, comparisons and tips on email testing and review.
Introducing the MailSandbox MCP server: email testing inside your AI editor
Let your AI coding agent send and inspect test emails without leaving the editor.
MailHog alternative: API compatibility matrix and a working migration diff
What actually breaks when you migrate off MailHog, endpoint by endpoint.
Why staging environments send emails to real customers, and how to make it structurally impossible
Every staging leak cleared a safeguard that already existed. Here's how to build the layers behind it.
How to prevent your staging server from sending emails to real customers
Stop staging from emailing real customers with a foolproof SMTP trap.
How to test magic links in Playwright without a real inbox
Grab magic links and OTPs from an API instead of scraping webmail in your Playwright tests.
How to test Supabase auth emails on staging without hitting the rate limit
Catch Supabase confirmation, magic link, and password reset emails on hosted staging without sending anything to real users.
WordPress staging email testing: catch every email before it hits a real inbox
Route your WordPress staging emails into a sandbox instead of real inboxes, and inspect every one.
How to test WooCommerce emails on staging without spamming real customers
Catch every WooCommerce email your staging site sends before it hits a real customer inbox.