通过Office 365企业帐户从Python发送电子邮件

import requests
import json

# 获取访问令牌
def get_access_token():
    url = 'https://login.microsoftonline.com/{tenant_id}/oauth2/token'
    headers = {
        'Content-Type': 'application/x-www-form-urlencoded'
    }
    data = {
        'grant_type': 'client_credentials',
        'client_id': '{client_id}',
        'client_secret': '{client_secret}',
        'resource': 'https://graph.microsoft.com'
    }
    response = requests.post(url, headers=headers, data=data)
    access_token = response.json()['access_token']
    return access_token

# 发送电子邮件
def send_email(access_token, sender, recipient, subject, body):
    url = 'https://graph.microsoft.com/v1.0/users/{}/sendMail'.format(sender)
    headers = {
        'Authorization': 'Bearer ' + access_token,
        'Content-Type': 'application/json'
    }
    data = {
        'message': {
            'subject': subject,
            'body': {
                'contentType': 'Text',
                'content': body
            },
            'toRecipients': [
                {
                    'emailAddress': {
                        'address': recipient
                    }
                }
            ]
        }
    }
    response = requests.post(url, headers=headers, data=json.dumps(data))
    if response.status_code == 202:
        print('Email sent successfully!')
    else:
        print('Failed to send email. Error:', response.text)

# 主函数
if __name__ == '__main__':
    # 获取访问令牌
    access_token = get_access_token()

    # 发送邮件
    sender = 'sender@example.com'
    recipient = 'recipient@example.com'
    subject = 'Test Email'
    body = 'This is a test email sent from Python.'
    send_email(access_token, sender, recipient, subject, body)