# Mailers - @kit/mailers This package is responsible for sending emails using a unified interface across the app. The default mailer uses the `nodemailer` package to send emails. You can create custom mailers by extending the `Mailer` class. Make sure the app installs the `@kit/mailers` package before using it. ```json { "name": "my-app", "dependencies": { "@kit/mailers": "*" } } ``` ## Usage By default, the package uses `nodemailer`. To use Cloudflare, please set the environment variable `MAILER_PROVIDER` to `cloudflare`. ``` MAILER_PROVIDER=cloudflare ``` To use [Resend](https:///resend.com)'s HTTP API, please set the environment variable `MAILER_PROVIDER` to `resend`. ``` MAILER_PROVIDER=resend ``` ### Send an email ```tsx import { getMailer } from '@kit/mailers'; async function sendEmail() { const mailer = await getMailer(); return mailer.sendEmail({ to: '', from: '', subject: 'Hello', text: 'Hello, World!' }); } ``` ## Cloudflare If you're using the `cloudflare` provider, please also read the instructions of the package [Vercel Email](https://github.com/Sh4yy/vercel-email) to setup your Workers. ## Resend If you're using the `resend` provider, please add the following environment variables: ``` RESEND_API_KEY=your-api-key ```