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send-email

Send single and batch transactional emails via the Resend API.

Updated Apr 9, 2025
Search Tags:#sdk#idempotency#retry#resend#send-email#batch-send#transactional-email
One-click install
npx skills add https://github.com/fringe4life/firstroad --skill send-email
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: send-email
Source: https://github.com/fringe4life/firstroad/tree/main/.agents/skills/resend/send-email
Command: npx skills add https://github.com/fringe4life/firstroad --skill send-email

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers automate the sending of transactional emails (welcome messages, order confirmations, password resets, or receipts) using the Resend API, ensuring reliable delivery and consistent behavior.

Core Features & Use Cases

  • Single Email: Send one transactional email via the Resend API with idempotency and optional scheduling.
  • Batch Email: Send multiple emails in a single request and handle idempotency with batch controls.
  • Pre-send Best Practices: Apply idempotency keys, proper error handling, and exponential backoff; integrate with webhooks for delivery status.

Quick Start

  1. Detect project language and install the Resend SDK following references/installation.md.
  2. Configure your RESEND_API_KEY environment variable.
  3. Use the SDK to send single or batch emails as described in references/single-email-examples.md and references/batch-email-examples.md.
  4. Review best practices in references/best-practices.md.

Frequently Asked Questions about send-email

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I send transactional emails reliably using the Resend API?▼

To send transactional emails reliably with Resend, use the official SDK and apply idempotency keys to prevent duplicate deliveries. This Skill automates single and batch email sending while enforcing structured error handling and safe retry logic.

How can I batch send multiple emails while maintaining idempotency?▼

Batch send multiple emails by grouping requests and handling idempotency with batch controls. This approach ensures that bulk transactional emails, like order confirmations, are processed consistently without duplicate sends.

What is the best way to handle email delivery errors and retries with Resend?▼

The best way to handle Resend email delivery errors is to implement structured error handling with exponential backoff. This ensures safe retry logic for failed transactional emails without overwhelming the API.

Do I need to configure a specific environment variable to use the Resend SDK?▼

Yes, you need to configure the RESEND_API_KEY environment variable before sending emails. This authenticates your requests when using the Resend SDK for transactional email delivery.

Can I use this approach for sending password resets and welcome messages?▼

Yes, this approach supports common transactional email use cases like password resets and welcome messages. Pre-send validation and webhook integration provide delivery status confirmation for these critical communications.

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