Blog & Resources
Code tips, email marketing guides, and everything you need to build better transactional emails with React.
New Device Sign-In Email: Anatomy of a Security Alert Users Don't Delete
Most new-device sign-in emails get deleted as phishing. Here's the trust anatomy and React Email template structure that earns the open and protects users.
AI SaaS Email Patterns: Usage Receipts, Credit Alerts, and Quota Warnings
AI products charge by usage, not by seat. Build the email patterns - generation receipts, 70/90/100% credit warnings, API key alerts, and billing thresholds - that fit usage-based billing in Next.js with React Email.
Does Resend Use Amazon SES? What Actually Powers It (2026)
Resend runs on Amazon SES - and it's not a secret. See the proof in DNS records and SMTP headers, understand what it means for deliverability, pricing, and lock-in, and learn when to stay on Resend vs. go direct to SES.
Resend vs Amazon SES: The Honest Comparison for Next.js Teams (2026)
Resend vs Amazon SES for Next.js apps: pricing at 10k, 100k, and 1M sends, developer experience, deliverability, setup time, and an honest migration path. Includes a 30-second decision table.
SendGrid to React Email: Migrate Your SaaS Email Stack to Resend
Step-by-step guide to migrating from SendGrid to Resend and React Email. Covers DNS cutover, API swap, template rebuild strategy, suppression list export, and webhook changes.
E-commerce Post-Purchase Emails: The 6-Email Flow That Drives Repeat Revenue
Build the complete post-purchase email sequence for e-commerce: order confirmation, shipping, delivery, review request, refund, and cross-sell. TypeScript code, webhook patterns, and timing strategy included.
React Email 5.0: Tailwind 4, Dark Mode Theming, and What Changes for Your Templates
React Email 5.0 ships Tailwind CSS v4, native dark mode theming, and a CSS compatibility checker. Here is what changed, what breaks, and whether to migrate or start fresh.