Fix Your AI-Built Resend Integration
Modern email API for developers with React Email support. AI tools expose API keys client-side, skip email validation, and misconfigure domain verification.
Common Resend issues we find
Problems specific to AI-generated Resend integrations.
API key exposed in client-side code
AI-generated code calls the Resend API directly from the browser, exposing the API key and allowing anyone to send emails from your domain.
Sending from unverified domain
Generated code sends emails from a domain that hasn't been verified in Resend's dashboard, causing all emails to fail or land in spam.
No rate limiting on email-sending endpoints
AI tools create API routes that call Resend without any rate limiting, allowing attackers to abuse your endpoint to send thousands of spam emails on your account.
React Email templates not rendering correctly
Generated React Email templates use standard React components and CSS that don't work in email clients, producing broken layouts in Gmail and Outlook.
Missing error handling for bounces and complaints
AI tools fire-and-forget emails without handling bounce notifications or complaint webhooks, risking your sender reputation and deliverability.
Our services
Get a professional review of your Resend integration.
Security Review
Security Review
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
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Full Pentest
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
Fix Bugs
Bug Fixing
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Ongoing Support
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
Refactor Code
Refactoring
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
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Full Rewrite
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
All projects start with a free consultation. We scope your project and provide a fixed quote before any work begins.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear quote
We respond within 24 hours with scope, timeline, and a fixed price.
Launch with confidence
We get to work, deliver results, and stick around to help.
Frequently asked questions
Why are my Resend emails going to spam?
AI-generated setups usually skip DNS configuration (SPF, DKIM, DMARC records), send from unverified domains, or use the default onboarding@resend.dev address. Proper domain verification and DNS records are required for inbox delivery.
How do I prevent my Resend API endpoint from being abused?
AI tools create open email endpoints with no protection. You need server-side rate limiting, authentication on the endpoint, input validation on recipient addresses, and ideally a queue system for bulk sends. We implement all of these safeguards.
Can I use React Email templates with my AI-generated Resend code?
Yes, but AI tools generate templates using standard React and CSS that break in email clients. Email templates need inline styles, table-based layouts, and special components from @react-email/components. We fix templates to render correctly everywhere.
Related resources
Other Integrations
Need help with your Resend integration?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.