Master Resend with our step-by-step tutorial, detailed feature walkthrough, and expert tips.
Sign up and verify your sending domain Install Resend SDK in your agent application Create React email templates for common use cases Integrate API calls into agent communication workflows Set up webhooks to track email delivery and engagement
💡 Quick Start: Follow these 1 steps in order to get up and running with Resend quickly.
Explore the key features that make Resend powerful for messaging & communication workflows.
Minimalist API design: send email with a single POST request containing from, to, subject, and content. Supports HTML, plain text, React components, and attachments. Response includes message ID for tracking.
An AI agent that sends analysis results via email with a short integration instead of relying on direct SMTP configuration.
Build email templates as React components using React Email. Templates can be rendered into email-ready HTML while letting React teams reuse component-based development patterns.
Building a weekly AI-generated newsletter template with React components while keeping template work inside a familiar React codebase.
Domain authentication support includes DKIM, SPF, and DMARC configuration for verified sending domains.
Setting up email sending for a new domain with standard authentication records instead of sending from an unverified domain.
Webhook events are listed across plans, with support for email lifecycle visibility such as sent, delivered, opened, clicked, bounced, and complained events.
An agent that escalates a critical notification workflow when webhook events show that an email bounced or generated a complaint.
Batch sending is listed as a supported sending feature, allowing teams to group multiple email sends into a single workflow where supported by the API.
An AI agent that generates personalized weekly reports for a team and sends them through a batch-oriented email workflow.
Manage multiple sending domains within a single account. Public pricing lists 1 domain on Free, 10 domains on Pro, 1,000 domains on Scale, and flexible domain limits on Enterprise.
A SaaS platform where AI agents send emails on behalf of different customer domains with separate authenticated sending domains.
Resend is positioned for production transactional and application email, and its public pricing page lists deliverability and reliability features such as DKIM, SPF, DMARC authentication, automatic suppression lists, bounce details, pristine shared IPs, and multi-region support. Teams with strict uptime, compliance, or high-volume requirements should validate SLAs, support terms, and deliverability needs directly.
Resend has a stronger emphasis on modern developer experience, clean API integration, official SDKs, React Email, and framework-friendly workflows. SendGrid is broader and more established, so teams should compare analytics, marketing features, support commitments, deliverability tooling, and pricing at their expected volume.
Yes. React Email is optional. Resend's API accepts plain HTML and text content. The React integration is a bonus for React teams but not required. You can use Resend with any framework or language through the REST API.
Resend supports key deliverability building blocks including DKIM, SPF, and DMARC authentication, automatic suppression lists, bounce details, pristine shared IPs, deliverability insights, and optional dedicated IPs on eligible paid plans. Actual inbox placement still depends on sender reputation, list quality, content, authentication, and warmup practices.
Now that you know how to use Resend, it's time to put this knowledge into practice.
Sign up and follow the tutorial steps
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Follow our tutorial and master this powerful messaging & communication tool in minutes.
Tutorial updated March 2026