使用Graph API与Office365-REST-Python-Client发邮件报错求助

错误原因分析 #

你遇到的TypeError是因为：

1. send_mail()方法不接受subject、body这类直接关键字参数，需要传入完整的邮件消息结构（对象或字典）
2. 你使用的是客户端凭据流（应用权限），这种模式下不能用client.me，必须指定具体的发送者邮箱（因为没有用户上下文）

修复后的Office365-REST-Python-Client代码 #

方式1：使用库内置对象构造邮件 #

import msal
from office365.graph_client import GraphClient
from office365.outlook.mail.message import Message
from office365.outlook.mail.item_body import ItemBody
from office365.outlook.mail.recipient import Recipient
from office365.outlook.mail.email_address import EmailAddress

# 替换为你的实际配置
config = {
    'client_id': 'foo',
    'secret': 'bar',
    'tenant_id': 'etc',
    'sender_email': 'your-sender@company.com'  # 必须指定发送者邮箱
}

def acquire_token():
    authority_url = f'https://login.microsoftonline.com/{config["tenant_id"]}'
    app = msal.ConfidentialClientApplication(
        authority=authority_url,
        client_id=config["client_id"],
        client_credential=config["secret"]
    )
    token = app.acquire_token_for_client(scopes=["https://graph.microsoft.com/.default"])
    return token

client = GraphClient(acquire_token)

# 构造邮件消息对象
message = Message(client)
message.subject = "Meet for lunch?"
message.body = ItemBody(content="The new cafeteria is open.", content_type="Text")
message.to_recipients = [
    Recipient(EmailAddress(email_address="elon.musk@company.com", name="Elon Musk"))
]

# 调用发送接口
client.users[config['sender_email']].send_mail(message, save_to_sent_items=True).execute_query()

方式2：用字典直接传递邮件结构（更简洁） #

import msal
from office365.graph_client import GraphClient

config = {
    'client_id': 'foo',
    'secret': 'bar',
    'tenant_id': 'etc',
    'sender_email': 'your-sender@company.com'
}

def acquire_token():
    authority_url = f'https://login.microsoftonline.com/{config["tenant_id"]}'
    app = msal.ConfidentialClientApplication(
        authority=authority_url,
        client_id=config["client_id"],
        client_credential=config["secret"]
    )
    token = app.acquire_token_for_client(scopes=["https://graph.microsoft.com/.default"])
    return token

client = GraphClient(acquire_token)

# 定义邮件结构字典
mail_msg = {
    "subject": "Meet for lunch?",
    "body": {
        "contentType": "Text",
        "content": "The new cafeteria is open."
    },
    "toRecipients": [
        {
            "emailAddress": {
                "address": "elon.musk@company.com"
            }
        }
    ]
}

client.users[config['sender_email']].send_mail(mail_msg, save_to_sent_items=True).execute_query()

不依赖第三方库的原生REST实现 #

如果不想用office365-rest-python-client，可以直接调用Graph API的REST接口：

import msal
import requests

config = {
    'client_id': 'foo',
    'secret': 'bar',
    'tenant_id': 'etc',
    'sender_email': 'your-sender@company.com'
}

def get_access_token():
    authority = f"https://login.microsoftonline.com/{config['tenant_id']}"
    app = msal.ConfidentialClientApplication(
        config['client_id'],
        authority=authority,
        client_credential=config['secret']
    )
    result = app.acquire_token_for_client(scopes=["https://graph.microsoft.com/.default"])
    return result['access_token']

# 获取令牌并发送邮件
token = get_access_token()
graph_url = f"https://graph.microsoft.com/v1.0/users/{config['sender_email']}/sendMail"

headers = {
    "Authorization": f"Bearer {token}",
    "Content-Type": "application/json"
}

payload = {
    "message": {
        "subject": "Meet for lunch?",
        "body": {
            "contentType": "Text",
            "content": "The new cafeteria is open."
        },
        "toRecipients": [
            {
                "emailAddress": {
                    "address": "elon.musk@company.com"
                }
            }
        ]
    },
    "saveToSentItems": "true"
}

response = requests.post(graph_url, headers=headers, json=payload)
response.raise_for_status()  # 抛出请求异常
print("邮件发送成功")

额外注意事项 #

• 确保你的Azure AD应用已经添加了Mail.Send的应用权限，并且管理员已完成权限同意
• 应用权限模式下，发送者邮箱必须是租户内的有效邮箱账号

内容的提问来源于stack exchange，提问作者Vitamin C