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https://github.com/sh4yy/cloudflare-email
This is a simple proxy server that can be used for sending free transactional emails through Cloudflare workers.
https://github.com/sh4yy/cloudflare-email
Last synced: 3 days ago
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This is a simple proxy server that can be used for sending free transactional emails through Cloudflare workers.
- Host: GitHub
- URL: https://github.com/sh4yy/cloudflare-email
- Owner: Sh4yy
- License: mit
- Created: 2023-06-14T19:10:04.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-04-28T18:02:18.000Z (5 months ago)
- Last Synced: 2024-09-30T20:24:33.512Z (3 days ago)
- Language: TypeScript
- Size: 29.3 KB
- Stars: 1,459
- Watchers: 12
- Forks: 338
- Open Issues: 12
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
Cloudflare Worker Email Server
Send free transactional emails from your Cloudflare Workers using MailChannels.
## Getting Started!
1. Clone this repository
2. Install the dependencies with `npm install`
3. Use the command `npx wrangler secret put --env production TOKEN` to deploy a securely stored token to Cloudflare. With this command, you will be prompted to enter a random secret value, which will be used to authenticate your requests with the HTTP `Authorization` header as described below. You can also set this encrypted value directly in your Cloudflare dashboard.
4. Deploy the worker with `npm run deploy`
Or deploy directly to Cloudflare
[](https://deploy.workers.cloudflare.com/?url=https://github.com/Sh4yy/cloudflare-email)
## Setup SPF
SPF is a DNS record that helps prevent email spoofing. You will need to add an SPF record to your domain to allow MailChannels to send emails on your behalf.
1. Add a `TXT` record to your domain with the following values:
- Name: `@`
- Value: `v=spf1 a mx include:relay.mailchannels.net ~all`
Note: If you're facing [Domain Lockdown error](https://support.mailchannels.com/hc/en-us/articles/16918954360845-Secure-your-domain-name-against-spoofing-with-Domain-Lockdown), follow the below steps:
1. Create a `TXT` record with the following values:
- Name: `_mailchannels`
- Value: `v=mc1 cfid=yourdomain.workers.dev` (the value of `cfid` will also be present in the error response)
## Setup DKIM
This step is optional, but highly recommended. DKIM is a DNS record that helps prevent email spoofing. You may follow the steps listed in the [MailChannels documentation](https://support.mailchannels.com/hc/en-us/articles/7122849237389-Adding-a-DKIM-Signature) to set up DKIM for your domain.
## Usage
Once you have deployed this worker function to Cloudflare Workers, you can send emails by making a `POST` request to the worker on the `/api/email` endpoint with the following parameters:
- Note you need to pass an `Authorization` header with the secure token you deployed. Like the following: `Authorization: TOKEN`
### Basic Email
The Most basic request would look like this:
```json
{
"to": "[email protected]",
"from": "[email protected]",
"subject": "Hello World",
"text": "Hello World"
}
```
### HTML Emails
You can also send HTML emails by adding an `html` parameter to the request. This can be used in conjunction with the `text` parameter to send a multi-part email.
```json
{
"to": "[email protected]",
"from": "[email protected]",
"subject": "Hello World",
"html": "
Hello World
"
}
```
### Sender and Recipient Name
You can also specify a sender and recipient name by adding a `name` parameter to the request. This can be used for both the `to` and `from` parameters.
```json
{
"to": { "email": "[email protected]", "name": "John Doe" },
"from": { "email": "[email protected]", "name": "Jane Doe" },
"subject": "Hello World",
"text": "Hello World"
}
```
### Sending to Multiple Recipients
You may also send to multiple recipients by passing an array of emails, or an array of objects with `email` and `name` properties.
```json
{
"to": [
"[email protected]",
"[email protected]"
],
"from": "[email protected]",
"subject": "Hello World",
"text": "Hello World"
}
```
or
```json
{
"to": [
{ "email": "[email protected]", "name": "John Doe" },
{ "email": "[email protected]", "name": "Rose Doe" }
],
"from": "[email protected]",
"subject": "Hello World",
"text": "Hello World"
}
```
### Sending BCC and CC
You can also send BCC and CC emails by passing an array of emails, an object with `email` and `name` properties, or an array of either, similar to the `to` parameter.
```json
{
"to": "[email protected]",
"from": "[email protected]",
"subject": "Hello World",
"text": "Hello World",
"cc": [
"[email protected]",
"[email protected]"
],
"bcc": [
"[email protected]"
]
}
```
### Reply To
You can also specify a reply to email address by adding a `replyTo` parameter to the request. Again, you can use an email string, an object with `email` and `name` properties, or an array of either.
```json
{
"to": "[email protected]",
"from": "[email protected]",
"replyTo": "[email protected]",
"subject": "Hello World",
"text": "Hello World"
}
```