`hono-email/resend` provides `ResendAdapter` for the Resend Email API. The adapter calls Resend directly with `fetch`; the official Resend SDK is not required. ## Example ```tsx import { Body, Html, Text, sendEmail } from 'hono-email' import ResendAdapter from 'hono-email/resend' const receipt = await sendEmail({ adapter: ResendAdapter({ apiKey: process.env.RESEND_API_KEY!, }), from: 'Sender ', to: ['recipient@example.com'], subject: 'Welcome', jsx: ( Hello from Resend. ), attachments: [ { filename: 'invoice.txt', content: 'Invoice text', contentType: 'text/plain', }, ], }) if (!receipt.successful) { console.error(receipt.errorMessages) } ``` For the full list of configuration options, see the [Resend Options API Reference](/api/adapter-options/#resend-options). ## User-Agent Resend requires a `User-Agent` header for direct HTTP requests, so `ResendAdapter` sends one by default. You can override it with the `userAgent` option. ## Shared adapter features Like all provider adapters, Resend supports `to`, `cc`, `bcc`, `replyTo`, custom `headers`, and `attachments`. Inline attachments use `cid` when the provider supports content IDs. ## Options import { Badge } from '@astrojs/starlight/components' ### `apiKey` **Type:** `string` Your Resend API key. ### `apiBaseUrl` **Type:** `string` · **Default:** `'https://api.resend.com'` Override the Resend API base URL. ### `fetch` **Type:** `(input: string, init: RequestInit) => Promise` Custom `fetch` implementation. Defaults to `globalThis.fetch`. ### `userAgent` **Type:** `string` · **Default:** `'hono-email'` `User-Agent` header sent with each request. ### `limits.maxAttachmentSize` **Type:** `number` Maximum attachment size in bytes.