Is Postmark Safe?
Security analysis for apps built with Postmark. Transactional email service focused on fast, reliable delivery with detailed analytics.
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Scan Your Postmark AppCommon Security Issues in Postmark Apps
Exposed API Keys
AI coding tools often embed API keys directly in frontend JavaScript. If you're using Postmark, check that secret keys aren't in your client-side bundle.
Missing Security Headers
Headers like Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options protect against XSS, clickjacking, and downgrade attacks.
Vulnerable Dependencies
Outdated npm packages with known CVEs are common in AI-generated code. Regular audits catch these before attackers do.
Authentication Weaknesses
Open registration endpoints, missing rate limiting, and exposed auth tokens are frequent issues in vibe-coded apps.
What ScanVibe Checks
Frequently Asked Questions
Is Postmark safe to use?
Postmark itself is a reputable platform, but apps built with Postmark often have security misconfigurations — exposed API keys, missing security headers, and vulnerable dependencies. ScanVibe scans your app to find these issues.
What security issues do Postmark apps commonly have?
The most common issues we find in Postmark apps are: exposed API keys in frontend JavaScript, missing security headers (CSP, HSTS), outdated dependencies with known vulnerabilities, and misconfigured authentication endpoints.
How do I check if my Postmark app is secure?
Enter your app's URL in ScanVibe's scanner. We'll check for exposed secrets, security headers, vulnerable libraries, exposed files, and platform-specific misconfigurations — all in about 30 seconds.
Does ScanVibe scan Postmark specifically?
Yes. ScanVibe detects Postmark in your stack and runs platform-specific security checks in addition to our standard 8-category analysis.