SendGrid 邮件发送平台 2025 最新指南：高可靠 API 与 SMTP 服务解析

from sendgrid import SendGridAPIClient
from sendgrid.helpers.mail import Mail

message = Mail(
    from_email='your_email@example.com',
    to_emails='recipient@example.com',
    subject='测试邮件',
    html_content='这是一封来自 SendGrid 的测试邮件！'
)
try:
    sg = SendGridAPIClient(api_key='你的 API 密钥')
    response = sg.send(message)
    print(response.status_code)
except Exception as e:
    print(e.message)

import smtplib
from email.mime.text import MIMEText

msg = MIMEText('这是一封通过 SMTP 发送的邮件。')
msg['Subject'] = 'SMTP 测试邮件'
msg['From'] = 'your_email@example.com'
msg['To'] = 'recipient@example.com'

with smtplib.SMTP('smtp.sendgrid.net', ) as server:
    server.starttls()
    server.login('apikey', '你的 API 密钥')
    server.send_message(msg)