> ## Documentation Index
> Fetch the complete documentation index at: https://resend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Send emails with Go
> Learn how to send your first email using the Resend Go SDK.
## Prerequisites
Before you start, you'll need:
* A Resend [API key](/create-an-api-key)
* A [verified domain](/add-a-domain)
## Guide
Get the Resend Go SDK.
```bash bash theme={"theme":{"light":"github-light","dark":"vesper"}}
go get github.com/resend/resend-go/v3
```
The easiest way to send an email is by using the `html` parameter.
```Go main.go theme={"theme":{"light":"github-light","dark":"vesper"}}
package main
import (
"fmt"
"github.com/resend/resend-go/v3"
)
func main() {
client := resend.NewClient("re_xxxxxxxxx")
params := &resend.SendEmailRequest{
From: "Acme ",
To: []string{"delivered@resend.dev"},
Html: "hello world",
Subject: "Hello from Golang",
Cc: []string{"cc@example.com"},
Bcc: []string{"bcc@example.com"},
ReplyTo: "replyto@example.com",
}
sent, err := client.Emails.Send(params)
if err != nil {
fmt.Println(err.Error())
return
}
fmt.Println(sent.Id)
}
```
## Examples
Basic email sending
Send emails with file attachments
Embed inline images using CID
Send emails using Resend hosted templates
Schedule emails for future delivery
Prevent email threading on Gmail
Manage contacts and audiences
Create and manage sending domains
Receive and process inbound emails
Double opt-in subscription flow
Full Chi web framework application
Full Gin web framework application