feat(services): 新增标准 IMAP 邮箱服务支持（Gmail/QQ/163等）

- 新增 EmailServiceType.IMAP_MAIL 枚举值和默认配置
- 新建 ImapMailService（imaplib 标准库，强制直连）
- 注册路由新增 imap_mail 分支和 available-services 键
- 邮箱服务路由新增 imap_mail stats 统计和类型描述
- accounts 路由 _build_inbox_config 支持 imap_mail
- 前端表单/列表/编辑完整支持 IMAP 子类型
- 无新增依赖

src/config/constants.py

@@ -37,6 +37,7 @@ class EmailServiceType(str, Enum):
     TEMP_MAIL = "temp_mail"
     DUCK_MAIL = "duck_mail"
     FREEMAIL = "freemail"
+    IMAP_MAIL = "imap_mail"
 
 
 # ============================================================================
@@ -128,6 +129,15 @@ EMAIL_SERVICE_DEFAULTS = {
         "domain": "",
         "timeout": 30,
         "max_retries": 3,
+    },
+    "imap_mail": {
+        "host": "",
+        "port": 993,
+        "use_ssl": True,
+        "email": "",
+        "password": "",
+        "timeout": 30,
+        "max_retries": 3,
     }
 }
 

src/services/__init__.py

@@ -16,6 +16,7 @@ from .moe_mail import MeoMailEmailService
 from .temp_mail import TempMailService
 from .duck_mail import DuckMailService
 from .freemail import FreemailService
+from .imap_mail import ImapMailService
 
 # 注册服务
 EmailServiceFactory.register(EmailServiceType.TEMPMAIL, TempmailService)
@@ -24,6 +25,7 @@ EmailServiceFactory.register(EmailServiceType.MOE_MAIL, MeoMailEmailService)
 EmailServiceFactory.register(EmailServiceType.TEMP_MAIL, TempMailService)
 EmailServiceFactory.register(EmailServiceType.DUCK_MAIL, DuckMailService)
 EmailServiceFactory.register(EmailServiceType.FREEMAIL, FreemailService)
+EmailServiceFactory.register(EmailServiceType.IMAP_MAIL, ImapMailService)
 
 # 导出 Outlook 模块的额外内容
 from .outlook.base import (
@@ -56,6 +58,7 @@ __all__ = [
     'TempMailService',
     'DuckMailService',
     'FreemailService',
+    'ImapMailService',
     # Outlook 模块
     'ProviderType',
     'EmailMessage',

src/services/imap_mail.py

@@ -0,0 +1,217 @@
+"""
+IMAP 邮箱服务
+支持 Gmail / QQ / 163 / Yahoo / Outlook 等标准 IMAP 协议邮件服务商。
+仅用于接收验证码，强制直连（imaplib 不支持代理）。
+"""
+
+import imaplib
+import email
+import re
+import time
+import logging
+from email.header import decode_header
+from typing import Any, Dict, Optional
+
+from .base import BaseEmailService, EmailServiceError
+from ..config.constants import (
+    EmailServiceType,
+    OPENAI_EMAIL_SENDERS,
+    OTP_CODE_SEMANTIC_PATTERN,
+    OTP_CODE_PATTERN,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class ImapMailService(BaseEmailService):
+    """标准 IMAP 邮箱服务（仅接收验证码，强制直连）"""
+
+    def __init__(self, config: Dict[str, Any] = None, name: str = None):
+        super().__init__(EmailServiceType.IMAP_MAIL, name)
+
+        cfg = config or {}
+        required_keys = ["host", "email", "password"]
+        missing_keys = [k for k in required_keys if not cfg.get(k)]
+        if missing_keys:
+            raise ValueError(f"缺少必需配置: {missing_keys}")
+
+        self.host: str = str(cfg["host"]).strip()
+        self.port: int = int(cfg.get("port", 993))
+        self.use_ssl: bool = bool(cfg.get("use_ssl", True))
+        self.email_addr: str = str(cfg["email"]).strip()
+        self.password: str = str(cfg["password"])
+        self.timeout: int = int(cfg.get("timeout", 30))
+        self.max_retries: int = int(cfg.get("max_retries", 3))
+
+    def _connect(self) -> imaplib.IMAP4:
+        """建立 IMAP 连接并登录，返回 mail 对象"""
+        if self.use_ssl:
+            mail = imaplib.IMAP4_SSL(self.host, self.port)
+        else:
+            mail = imaplib.IMAP4(self.host, self.port)
+            mail.starttls()
+        mail.login(self.email_addr, self.password)
+        return mail
+
+    def _decode_str(self, value) -> str:
+        """解码邮件头部字段"""
+        if value is None:
+            return ""
+        parts = decode_header(value)
+        decoded = []
+        for part, charset in parts:
+            if isinstance(part, bytes):
+                decoded.append(part.decode(charset or "utf-8", errors="replace"))
+            else:
+                decoded.append(str(part))
+        return " ".join(decoded)
+
+    def _get_text_body(self, msg) -> str:
+        """提取邮件纯文本内容"""
+        body = ""
+        if msg.is_multipart():
+            for part in msg.walk():
+                if part.get_content_type() == "text/plain":
+                    charset = part.get_content_charset() or "utf-8"
+                    payload = part.get_payload(decode=True)
+                    if payload:
+                        body += payload.decode(charset, errors="replace")
+        else:
+            charset = msg.get_content_charset() or "utf-8"
+            payload = msg.get_payload(decode=True)
+            if payload:
+                body = payload.decode(charset, errors="replace")
+        return body
+
+    def _is_openai_sender(self, from_addr: str) -> bool:
+        """判断发件人是否为 OpenAI"""
+        from_lower = from_addr.lower()
+        for sender in OPENAI_EMAIL_SENDERS:
+            if sender.startswith("@") or sender.startswith("."):
+                if sender in from_lower:
+                    return True
+            else:
+                if sender in from_lower:
+                    return True
+        return False
+
+    def _extract_otp(self, text: str) -> Optional[str]:
+        """从文本中提取 6 位验证码，优先语义匹配，回退简单匹配"""
+        match = re.search(OTP_CODE_SEMANTIC_PATTERN, text, re.IGNORECASE)
+        if match:
+            return match.group(1)
+        match = re.search(OTP_CODE_PATTERN, text)
+        if match:
+            return match.group(1)
+        return None
+
+    def create_email(self, config: Dict[str, Any] = None) -> Dict[str, Any]:
+        """IMAP 模式不创建新邮箱，直接返回配置中的固定地址"""
+        self.update_status(True)
+        return {
+            "email": self.email_addr,
+            "service_id": self.email_addr,
+            "id": self.email_addr,
+        }
+
+    def get_verification_code(
+        self,
+        email: str,
+        email_id: str = None,
+        timeout: int = 60,
+        pattern: str = None,
+        otp_sent_at: Optional[float] = None,
+    ) -> Optional[str]:
+        """轮询 IMAP 收件箱，获取 OpenAI 验证码"""
+        start_time = time.time()
+        seen_ids: set = set()
+        mail = None
+
+        try:
+            mail = self._connect()
+            mail.select("INBOX")
+
+            while time.time() - start_time < timeout:
+                try:
+                    # 搜索所有未读邮件
+                    status, data = mail.search(None, "UNSEEN")
+                    if status != "OK" or not data or not data[0]:
+                        time.sleep(3)
+                        continue
+
+                    msg_ids = data[0].split()
+                    for msg_id in reversed(msg_ids):  # 最新的优先
+                        id_str = msg_id.decode()
+                        if id_str in seen_ids:
+                            continue
+                        seen_ids.add(id_str)
+
+                        # 获取邮件
+                        status, msg_data = mail.fetch(msg_id, "(RFC822)")
+                        if status != "OK" or not msg_data:
+                            continue
+
+                        raw = msg_data[0][1]
+                        msg = email.message_from_bytes(raw)
+
+                        # 检查发件人
+                        from_addr = self._decode_str(msg.get("From", ""))
+                        if not self._is_openai_sender(from_addr):
+                            continue
+
+                        # 提取验证码
+                        body = self._get_text_body(msg)
+                        code = self._extract_otp(body)
+                        if code:
+                            # 标记已读
+                            mail.store(msg_id, "+FLAGS", "\\Seen")
+                            self.update_status(True)
+                            logger.info(f"IMAP 获取验证码成功: {code}")
+                            return code
+
+                except imaplib.IMAP4.error as e:
+                    logger.debug(f"IMAP 搜索邮件失败: {e}")
+                    # 尝试重新连接
+                    try:
+                        mail.select("INBOX")
+                    except Exception:
+                        pass
+
+                time.sleep(3)
+
+        except Exception as e:
+            logger.warning(f"IMAP 连接/轮询失败: {e}")
+            self.update_status(False, str(e))
+        finally:
+            if mail:
+                try:
+                    mail.logout()
+                except Exception:
+                    pass
+
+        return None
+
+    def check_health(self) -> bool:
+        """尝试 IMAP 登录并选择收件箱"""
+        mail = None
+        try:
+            mail = self._connect()
+            status, _ = mail.select("INBOX")
+            return status == "OK"
+        except Exception as e:
+            logger.warning(f"IMAP 健康检查失败: {e}")
+            return False
+        finally:
+            if mail:
+                try:
+                    mail.logout()
+                except Exception:
+                    pass
+
+    def list_emails(self, **kwargs) -> list:
+        """IMAP 单账号模式，返回固定地址"""
+        return [{"email": self.email_addr, "id": self.email_addr}]
+
+    def delete_email(self, email_id: str) -> bool:
+        """IMAP 模式无需删除逻辑"""
+        return True

src/web/routes/accounts.py

@@ -1002,6 +1002,7 @@ def _build_inbox_config(db, service_type, email: str) -> dict:
         EST.TEMP_MAIL: "temp_mail",
         EST.DUCK_MAIL: "duck_mail",
         EST.FREEMAIL: "freemail",
+        EST.IMAP_MAIL: "imap_mail",
         EST.OUTLOOK: "outlook",
     }
     db_type = type_map.get(service_type)

src/web/routes/email.py

@@ -146,6 +146,7 @@ async def get_email_services_stats():
             'temp_mail_count': 0,
             'duck_mail_count': 0,
             'freemail_count': 0,
+            'imap_mail_count': 0,
             'tempmail_available': True,  # 临时邮箱始终可用
             'enabled_count': enabled_count
         }
@@ -161,6 +162,8 @@ async def get_email_services_stats():
                 stats['duck_mail_count'] = count
             elif service_type == 'freemail':
                 stats['freemail_count'] = count
+            elif service_type == 'imap_mail':
+                stats['imap_mail_count'] = count
 
         return stats
 
@@ -231,6 +234,18 @@ async def get_service_types():
                     {"name": "admin_token", "label": "Admin Token", "required": True, "secret": True},
                     {"name": "domain", "label": "邮箱域名", "required": False, "placeholder": "example.com"},
                 ]
+            },
+            {
+                "value": "imap_mail",
+                "label": "IMAP 邮箱",
+                "description": "标准 IMAP 协议邮箱（Gmail/QQ/163等），仅用于接收验证码，强制直连",
+                "config_fields": [
+                    {"name": "host", "label": "IMAP 服务器", "required": True, "placeholder": "imap.gmail.com"},
+                    {"name": "port", "label": "端口", "required": False, "default": 993},
+                    {"name": "use_ssl", "label": "使用 SSL", "required": False, "default": True},
+                    {"name": "email", "label": "邮箱地址", "required": True},
+                    {"name": "password", "label": "密码/授权码", "required": True, "secret": True},
+                ]
             }
         ]
     }

src/web/routes/registration.py

@@ -372,6 +372,20 @@ def _run_sync_registration_task(task_uuid: str, email_service_type: str, proxy:
                         logger.info(f"使用数据库 Freemail 服务: {db_service.name}")
                     else:
                         raise ValueError("没有可用的 Freemail 邮箱服务，请先在邮箱服务页面添加服务")
+                elif service_type == EmailServiceType.IMAP_MAIL:
+                    from ...database.models import EmailService as EmailServiceModel
+
+                    db_service = db.query(EmailServiceModel).filter(
+                        EmailServiceModel.service_type == "imap_mail",
+                        EmailServiceModel.enabled == True
+                    ).order_by(EmailServiceModel.priority.asc()).first()
+
+                    if db_service and db_service.config:
+                        config = _normalize_email_service_config(service_type, db_service.config, actual_proxy_url)
+                        crud.update_registration_task(db, task_uuid, email_service_id=db_service.id)
+                        logger.info(f"使用数据库 IMAP 邮箱服务: {db_service.name}")
+                    else:
+                        raise ValueError("没有可用的 IMAP 邮箱服务，请先在邮箱服务中添加")
                 else:
                     config = email_service_config or {}
 
@@ -1110,6 +1124,11 @@ async def get_available_email_services():
             "available": False,
             "count": 0,
             "services": []
+        },
+        "imap_mail": {
+            "available": False,
+            "count": 0,
+            "services": []
         }
     }
 
@@ -1219,6 +1238,25 @@ async def get_available_email_services():
         result["freemail"]["count"] = len(freemail_services)
         result["freemail"]["available"] = len(freemail_services) > 0
 
+        imap_mail_services = db.query(EmailServiceModel).filter(
+            EmailServiceModel.service_type == "imap_mail",
+            EmailServiceModel.enabled == True
+        ).order_by(EmailServiceModel.priority.asc()).all()
+
+        for service in imap_mail_services:
+            config = service.config or {}
+            result["imap_mail"]["services"].append({
+                "id": service.id,
+                "name": service.name,
+                "type": "imap_mail",
+                "email": config.get("email"),
+                "host": config.get("host"),
+                "priority": service.priority
+            })
+
+        result["imap_mail"]["count"] = len(imap_mail_services)
+        result["imap_mail"]["available"] = len(imap_mail_services) > 0
+
     return result
 
 

static/js/email_services.js

@@ -4,7 +4,7 @@
 
 // 状态
 let outlookServices = [];
-let customServices = [];  // 合并 moe_mail + temp_mail + duck_mail
+let customServices = [];  // 合并 moe_mail + temp_mail + duck_mail + freemail + imap_mail
 let selectedOutlook = new Set();
 let selectedCustom = new Set();
 
@@ -52,6 +52,7 @@ const elements = {
     addTempmailFields: document.getElementById('add-tempmail-fields'),
     addDuckmailFields: document.getElementById('add-duckmail-fields'),
     addFreemailFields: document.getElementById('add-freemail-fields'),
+    addImapFields: document.getElementById('add-imap-fields'),
 
     // 编辑自定义域名模态框
     editCustomModal: document.getElementById('edit-custom-modal'),
@@ -62,6 +63,7 @@ const elements = {
     editTempmailFields: document.getElementById('edit-tempmail-fields'),
     editDuckmailFields: document.getElementById('edit-duckmail-fields'),
     editFreemailFields: document.getElementById('edit-freemail-fields'),
+    editImapFields: document.getElementById('edit-imap-fields'),
     editCustomTypeBadge: document.getElementById('edit-custom-type-badge'),
     editCustomSubTypeHidden: document.getElementById('edit-custom-sub-type-hidden'),
 
@@ -76,7 +78,8 @@ const CUSTOM_SUBTYPE_LABELS = {
     moemail: '🔗 MoeMail（自定义域名 API）',
     tempmail: '📮 TempMail（自部署 Cloudflare Worker）',
     duckmail: '🦆 DuckMail（DuckMail API）',
-    freemail: 'Freemail（自部署 Cloudflare Worker）'
+    freemail: 'Freemail（自部署 Cloudflare Worker）',
+    imap: '📧 IMAP 邮箱（Gmail/QQ/163等）'
 };
 
 // 初始化
@@ -182,6 +185,7 @@ function switchAddSubType(subType) {
     elements.addTempmailFields.style.display = subType === 'tempmail' ? '' : 'none';
     elements.addDuckmailFields.style.display = subType === 'duckmail' ? '' : 'none';
     elements.addFreemailFields.style.display = subType === 'freemail' ? '' : 'none';
+    elements.addImapFields.style.display = subType === 'imap' ? '' : 'none';
 }
 
 // 切换编辑表单子类型显示
@@ -191,6 +195,7 @@ function switchEditSubType(subType) {
     elements.editTempmailFields.style.display = subType === 'tempmail' ? '' : 'none';
     elements.editDuckmailFields.style.display = subType === 'duckmail' ? '' : 'none';
     elements.editFreemailFields.style.display = subType === 'freemail' ? '' : 'none';
+    elements.editImapFields.style.display = subType === 'imap' ? '' : 'none';
     elements.editCustomTypeBadge.textContent = CUSTOM_SUBTYPE_LABELS[subType] || CUSTOM_SUBTYPE_LABELS.moemail;
 }
 
@@ -199,7 +204,7 @@ async function loadStats() {
     try {
         const data = await api.get('/email-services/stats');
         elements.outlookCount.textContent = data.outlook_count || 0;
-        elements.customCount.textContent = (data.custom_count || 0) + (data.temp_mail_count || 0) + (data.duck_mail_count || 0) + (data.freemail_count || 0);
+        elements.customCount.textContent = (data.custom_count || 0) + (data.temp_mail_count || 0) + (data.duck_mail_count || 0) + (data.freemail_count || 0) + (data.imap_mail_count || 0);
         elements.tempmailStatus.textContent = data.tempmail_available ? '可用' : '不可用';
         elements.totalEnabled.textContent = data.enabled_count || 0;
     } catch (error) {
@@ -281,10 +286,18 @@ function getCustomServiceTypeBadge(subType) {
     if (subType === 'duckmail') {
         return '<span class="status-badge success">DuckMail</span>';
     }
-    return '<span class="status-badge" style="background-color:#9c27b0;color:white;">Freemail</span>';
+    if (subType === 'freemail') {
+        return '<span class="status-badge" style="background-color:#9c27b0;color:white;">Freemail</span>';
+    }
+    return '<span class="status-badge" style="background-color:#0288d1;color:white;">IMAP</span>';
 }
 
 function getCustomServiceAddress(service) {
+    if (service._subType === 'imap') {
+        const host = service.config?.host || '-';
+        const emailAddr = service.config?.email || '';
+        return `${escapeHtml(host)}<div style="color: var(--text-muted); margin-top: 4px;">${escapeHtml(emailAddr)}</div>`;
+    }
     const baseUrl = service.config?.base_url || '-';
     const domain = service.config?.default_domain || service.config?.domain;
     if (!domain) {
@@ -296,17 +309,19 @@ function getCustomServiceAddress(service) {
 // 加载自定义邮箱服务（moe_mail + temp_mail + duck_mail + freemail 合并）
 async function loadCustomServices() {
     try {
-        const [r1, r2, r3, r4] = await Promise.all([
+        const [r1, r2, r3, r4, r5] = await Promise.all([
             api.get('/email-services?service_type=moe_mail'),
             api.get('/email-services?service_type=temp_mail'),
             api.get('/email-services?service_type=duck_mail'),
-            api.get('/email-services?service_type=freemail')
+            api.get('/email-services?service_type=freemail'),
+            api.get('/email-services?service_type=imap_mail')
         ]);
         customServices = [
             ...(r1.services || []).map(s => ({ ...s, _subType: 'moemail' })),
             ...(r2.services || []).map(s => ({ ...s, _subType: 'tempmail' })),
             ...(r3.services || []).map(s => ({ ...s, _subType: 'duckmail' })),
-            ...(r4.services || []).map(s => ({ ...s, _subType: 'freemail' }))
+            ...(r4.services || []).map(s => ({ ...s, _subType: 'freemail' })),
+            ...(r5.services || []).map(s => ({ ...s, _subType: 'imap' }))
         ];
 
         if (customServices.length === 0) {
@@ -444,13 +459,22 @@ async function handleAddCustom(e) {
             default_domain: formData.get('dm_domain'),
             password_length: parseInt(formData.get('dm_password_length'), 10) || 12
         };
-    } else {
+    } else if (subType === 'freemail') {
         serviceType = 'freemail';
         config = {
             base_url: formData.get('fm_base_url'),
             admin_token: formData.get('fm_admin_token'),
             domain: formData.get('fm_domain')
         };
+    } else {
+        serviceType = 'imap_mail';
+        config = {
+            host: formData.get('imap_host'),
+            port: parseInt(formData.get('imap_port'), 10) || 993,
+            use_ssl: formData.get('imap_use_ssl') !== 'false',
+            email: formData.get('imap_email'),
+            password: formData.get('imap_password')
+        };
     }
 
     const data = {
@@ -593,7 +617,9 @@ async function editCustomService(id, subType) {
                     ? 'duckmail'
                     : service.service_type === 'freemail'
                         ? 'freemail'
-                        : 'moemail'
+                        : service.service_type === 'imap_mail'
+                            ? 'imap'
+                            : 'moemail'
         );
 
         document.getElementById('edit-custom-id').value = service.id;
@@ -619,11 +645,18 @@ async function editCustomService(id, subType) {
             document.getElementById('edit-dm-api-key').placeholder = service.config?.api_key ? '已设置，留空保持不变' : '请输入 API Key（可选）';
             document.getElementById('edit-dm-domain').value = service.config?.default_domain || '';
             document.getElementById('edit-dm-password-length').value = service.config?.password_length || 12;
-        } else {
+        } else if (resolvedSubType === 'freemail') {
             document.getElementById('edit-fm-base-url').value = service.config?.base_url || '';
             document.getElementById('edit-fm-admin-token').value = '';
             document.getElementById('edit-fm-admin-token').placeholder = service.config?.admin_token ? '已设置，留空保持不变' : '请输入 Admin Token';
             document.getElementById('edit-fm-domain').value = service.config?.domain || '';
+        } else {
+            document.getElementById('edit-imap-host').value = service.config?.host || '';
+            document.getElementById('edit-imap-port').value = service.config?.port || 993;
+            document.getElementById('edit-imap-use-ssl').value = service.config?.use_ssl !== false ? 'true' : 'false';
+            document.getElementById('edit-imap-email').value = service.config?.email || '';
+            document.getElementById('edit-imap-password').value = '';
+            document.getElementById('edit-imap-password').placeholder = service.config?.password ? '已设置，留空保持不变' : '请输入密码/授权码';
         }
 
         elements.editCustomModal.classList.add('active');
@@ -663,13 +696,22 @@ async function handleEditCustom(e) {
         };
         const apiKey = formData.get('dm_api_key');
         if (apiKey && apiKey.trim()) config.api_key = apiKey.trim();
-    } else {
+    } else if (subType === 'freemail') {
         config = {
             base_url: formData.get('fm_base_url'),
             domain: formData.get('fm_domain')
         };
         const token = formData.get('fm_admin_token');
         if (token && token.trim()) config.admin_token = token.trim();
+    } else {
+        config = {
+            host: formData.get('imap_host'),
+            port: parseInt(formData.get('imap_port'), 10) || 993,
+            use_ssl: formData.get('imap_use_ssl') !== 'false',
+            email: formData.get('imap_email')
+        };
+        const pwd = formData.get('imap_password');
+        if (pwd && pwd.trim()) config.password = pwd.trim();
     }
 
     const updateData = {

static/js/utils.js

@@ -354,7 +354,8 @@ const statusMap = {
         moe_mail: 'MoeMail',
         temp_mail: 'Temp-Mail（自部署）',
         duck_mail: 'DuckMail',
-        freemail: 'Freemail'
+        freemail: 'Freemail',
+        imap_mail: 'IMAP 邮箱'
     }
 };
 

templates/email_services.html

@@ -211,6 +211,7 @@
                             <option value="tempmail">TempMail（自部署 Cloudflare Worker）</option>
                             <option value="duckmail">DuckMail（DuckMail API）</option>
                             <option value="freemail">Freemail（自部署 Cloudflare Worker）</option>
+                            <option value="imap">标准 IMAP（Gmail/QQ/163等）</option>
                         </select>
                     </div>
                     <!-- MoeMail 字段 -->
@@ -277,6 +278,35 @@
                             <input type="text" id="custom-fm-domain" name="fm_domain" placeholder="example.com">
                         </div>
                     </div>
+                    <!-- IMAP 字段 -->
+                    <div id="add-imap-fields" style="display:none;">
+                        <div class="form-group">
+                            <label for="custom-imap-host">IMAP 服务器</label>
+                            <input type="text" id="custom-imap-host" name="imap_host" placeholder="imap.gmail.com / imap.qq.com / imap.163.com">
+                            <small style="color: var(--text-muted);">Gmail: imap.gmail.com | QQ: imap.qq.com | 163: imap.163.com</small>
+                        </div>
+                        <div class="form-row">
+                            <div class="form-group">
+                                <label for="custom-imap-port">端口</label>
+                                <input type="number" id="custom-imap-port" name="imap_port" value="993" min="1" max="65535">
+                            </div>
+                            <div class="form-group">
+                                <label for="custom-imap-use-ssl">加密方式</label>
+                                <select id="custom-imap-use-ssl" name="imap_use_ssl">
+                                    <option value="true">SSL（端口 993）</option>
+                                    <option value="false">STARTTLS（端口 143）</option>
+                                </select>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="custom-imap-email">邮箱地址</label>
+                            <input type="email" id="custom-imap-email" name="imap_email" placeholder="your@gmail.com">
+                        </div>
+                        <div class="form-group">
+                            <label for="custom-imap-password">密码 / 授权码</label>
+                            <input type="password" id="custom-imap-password" name="imap_password" placeholder="Gmail 需使用 App Password，QQ/163 需使用授权码">
+                        </div>
+                    </div>
                     <div class="form-row">
                         <div class="form-group">
                             <label for="custom-priority">优先级</label>
@@ -386,6 +416,35 @@
                             <input type="text" id="edit-fm-domain" name="fm_domain" placeholder="example.com">
                         </div>
                     </div>
+                    <!-- IMAP 字段 -->
+                    <div id="edit-imap-fields" style="display:none;">
+                        <div class="form-group">
+                            <label for="edit-imap-host">IMAP 服务器</label>
+                            <input type="text" id="edit-imap-host" name="imap_host" placeholder="imap.gmail.com">
+                        </div>
+                        <div class="form-row">
+                            <div class="form-group">
+                                <label for="edit-imap-port">端口</label>
+                                <input type="number" id="edit-imap-port" name="imap_port" value="993" min="1" max="65535">
+                            </div>
+                            <div class="form-group">
+                                <label for="edit-imap-use-ssl">加密方式</label>
+                                <select id="edit-imap-use-ssl" name="imap_use_ssl">
+                                    <option value="true">SSL（端口 993）</option>
+                                    <option value="false">STARTTLS（端口 143）</option>
+                                </select>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="edit-imap-email">邮箱地址</label>
+                            <input type="email" id="edit-imap-email" name="imap_email" placeholder="your@gmail.com">
+                        </div>
+                        <div class="form-group">
+                            <label for="edit-imap-password">密码 / 授权码</label>
+                            <input type="password" id="edit-imap-password" name="imap_password" placeholder="留空则保持原值不变">
+                            <small style="color: var(--text-muted);">留空则保持原值不变</small>
+                        </div>
+                    </div>
                     <div class="form-row">
                         <div class="form-group">
                             <label for="edit-custom-priority">优先级</label>

templates/index.html

@@ -181,6 +181,7 @@
                                         <option value="moe_mail">MoeMail</option>
                                         <option value="temp_mail">Temp-Mail 自部署</option>
                                         <option value="duck_mail">DuckMail</option>
+                                        <option value="imap_mail">IMAP 邮箱</option>
                                         <option value="outlook_batch:all">Outlook 批量注册</option>
                                     </select>
                                 </div>