feat(v1.1.0): add send mail support via Graph API and SMTP

app/services/graph.py

@@ -420,3 +420,32 @@ def delete_emails_graph(
         )
 
     return result
+
+
+def send_mail_graph(access_token: str, to_email: str, subject: str, body_text: str, proxy_url: str = None) -> bool:
+    """使用 Microsoft Graph API 发送邮件"""
+    url = "https://graph.microsoft.com/v1.0/me/sendMail"
+    headers = {
+        "Authorization": f"Bearer {access_token}",
+        "Content-Type": "application/json"
+    }
+    payload = {
+        "message": {
+            "subject": subject,
+            "body": {
+                "contentType": "Text",
+                "content": body_text
+            },
+            "toRecipients": [
+                {
+                    "emailAddress": {
+                        "address": to_email
+                    }
+                }
+            ]
+        },
+        "saveToSentItems": "true"
+    }
+    proxies = build_proxies(proxy_url) if "build_proxies" in globals() else ({"http": proxy_url, "https": proxy_url} if proxy_url else None)
+    res = requests.post(url, json=payload, headers=headers, proxies=proxies, timeout=30)
+    return res.status_code in (200, 202)

app/services/smtp.py

@@ -0,0 +1,22 @@
+import smtplib
+from email.message import EmailMessage
+
+def send_mail_smtp(host: str, port: int, username: str, password: str, to_email: str, subject: str, body_text: str, use_tls: bool = True, use_ssl: bool = False) -> bool:
+    """使用 SMTP 协议发送邮件"""
+    msg = EmailMessage()
+    msg["Subject"] = subject
+    msg["From"] = username
+    msg["To"] = to_email
+    msg.set_content(body_text)
+
+    if use_ssl:
+        with smtplib.SMTP_SSL(host, port, timeout=20) as server:
+            server.login(username, password)
+            server.send_message(msg)
+    else:
+        with smtplib.SMTP(host, port, timeout=20) as server:
+            if use_tls:
+                server.starttls()
+            server.login(username, password)
+            server.send_message(msg)
+    return True