Testing
Live preview, test emails, responsive checks, and troubleshooting rendering bugs.
All Topics in Testing
In-Editor Preview & Simulation
Test your templates using real-time desktop and mobile simulations, dark mode toggles, and dynamic data interpolation.
Edge-Case Test Data
Stress-test your email layouts with realistic edge-case mock data: long names, missing fields, empty collections, and special characters.
Sending Test Emails
Send real test emails directly from PostBrix to your personal inbox to inspect formatting on your physical smartphone and laptop.
Responsive & Touch Target Testing
Validate mobile column stacking, touch target sizes (44x44px min), and font legibility on small screens.
Email Client Testing Matrix
How to test across the major rendering engines: WebKit (Apple Mail), Blink (Gmail), and Word (Outlook Windows).
Link Verification & Security Checks
Avoid embarrassing 404 errors: verify anchor targets, query parameters, protocol enforcement, and spam filter safety.
Image QA & Blocked Images Test
Ensure your email remains readable and compelling even when the recipient’s email client blocks images by default.
Troubleshooting Common Rendering Issues
Diagnostic guide and fixes for Outlook 1px borders, Gmail clipping, font reversion, image explosion, and mobile alignment bugs.
Email Quality Engine & Pre-Send Audit
Automated 0–100 quality scoring engine checking deliverability risks, WCAG accessibility, Gmail 102KB clipping, broken links, and mobile touch targets.