SendGrid 怎么设置 SMTP 服务？多语言开发集成全攻略 2025

import sendgrid
from sendgrid.helpers.mail import Mail

sg = sendgrid.SendGridAPIClient(api_key='YOUR_API_KEY')

from_email = Email("sender@example.com")
to_email = To("recipient@example.com")
subject = "Hello from SendGrid"
content = Content("text/plain", "This is a test email.")
mail = Mail(from_email, to_email, subject, content)

response = sg.client.mail.send.post(request_body=mail.get())
print(response.status_code)

const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(process.env.SENDGRID_API_KEY);

const msg = {
  to: 'recipient@example.com',
  from: 'sender@example.com',
  subject: 'Hello from SendGrid',
  text: 'This is a test email.',
  html: '
This is a test email.
',
};

sgMail.send(msg).then(response => {
  console.log(response[].statusCode);
}).catch(error => {
  console.error(error);
});

<dependency>
  <groupId>com.sendgridgroupId>
  <artifactId>sendgridartifactId>
  <version>4.7.6version>
dependency>

import com.sendgrid.SendGrid;
import com.sendgrid.helpers.mail.Mail;
import com.sendgrid.helpers.mail.objects.Content;
import com.sendgrid.helpers.mail.objects.Email;

public class SendGridExample {
  public static void main(String[] args) {
    SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
    Email from = new Email("sender@example.com");
    Email to = new Email("recipient@example.com");
    String subject = "Hello from SendGrid";
    Content content = new Content("text/plain", "This is a test email.");
    Mail mail = new Mail(from, subject, to, content);
    try {
      SendGrid.Response response = sg.api(mail.build());
      System.out.println(response.getStatusCode());
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

require 'vendor/autoload.php';

$apiKey = getenv('SENDGRID_API_KEY');
$sg = new \SendGrid($apiKey);

$from = new \SendGrid\Mail\From("sender@example.com");
$to = new \SendGrid\Mail\To("recipient@example.com");
$subject = "Hello from SendGrid";
$content = new \SendGrid\Mail\Content("text/plain", "This is a test email.");
$mail = new \SendGrid\Mail\Mail($from, $subject, $to, $content);

try {
  $response = $sg->send($mail);
  print $response->statusCode() . "\n";
} catch (Exception $e) {
  echo 'Caught exception: ' . $e->getMessage() . "\n";
}

using SendGrid;
using SendGrid.Helpers.Mail;
using System;
using System.Threading.Tasks;

class Program
{
  static async Task Main(string[] args)
  {
    var apiKey = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
    var client = new SendGridClient(apiKey);
    var from = new EmailAddress("sender@example.com", "Example User");
    var subject = "Hello from SendGrid";
    var to = new EmailAddress("recipient@example.com", "Example User");
    var plainTextContent = "This is a test email.";
    var htmlContent = "
This is a test email.
";
    var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, htmlContent);
    var response = await client.SendEmailAsync(msg);
    Console.WriteLine(response.StatusCode);
  }
}

package main

import (
  "fmt"
  "log"
  "os"

  "github.com/sendgrid/sendgrid-go"
  "github.com/sendgrid/sendgrid-go/helpers/mail"
)

func main() {
  apiKey := os.Getenv("SENDGRID_API_KEY")
  sg := sendgrid.NewSendGridClient(apiKey)
  from := mail.NewEmail("Example User", "sender@example.com")
  subject := "Hello from SendGrid"
  to := mail.NewEmail("Example User", "recipient@example.com")
  content := mail.NewContent("text/plain", "This is a test email.")
  mail := mail.NewSingleEmail(from, subject, to, content)
  response, err := sg.Send(mail)
  if err != nil {
    log.Fatalf("SendGrid Error: %s\n", err)
  }
  fmt.Println(response.StatusCode)
}