diff --git a/.gitignore b/.gitignore
index e58d61a..267cd1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,3 +54,4 @@ Thumbs.db
 
 # Project specific
 backups/
+/out/
diff --git a/src/web/routes/registration.py b/src/web/routes/registration.py
index 41c006e..5ba459e 100644
--- a/src/web/routes/registration.py
+++ b/src/web/routes/registration.py
@@ -225,6 +225,11 @@ def _run_sync_registration_task(task_uuid: str, email_service_type: str, proxy:
 
                 if db_service:
                     config = db_service.config.copy() if db_service.config else {}
+                    # 兼容旧版字段名 api_url -> base_url
+                    if 'api_url' in config and 'base_url' not in config:
+                        config['base_url'] = config.pop('api_url')
+                    if 'domain' in config and 'default_domain' not in config:
+                        config['default_domain'] = config.pop('domain')
                     # 更新任务关联的邮箱服务
                     crud.update_registration_task(db, task_uuid, email_service_id=db_service.id)
                     logger.info(f"使用数据库邮箱服务: {db_service.name} (ID: {db_service.id})")
@@ -249,6 +254,11 @@ def _run_sync_registration_task(task_uuid: str, email_service_type: str, proxy:
 
                     if db_service and db_service.config:
                         config = db_service.config.copy()
+                        # 兼容旧版字段名 api_url -> base_url
+                        if 'api_url' in config and 'base_url' not in config:
+                            config['base_url'] = config.pop('api_url')
+                        if 'domain' in config and 'default_domain' not in config:
+                            config['default_domain'] = config.pop('domain')
                         crud.update_registration_task(db, task_uuid, email_service_id=db_service.id)
                         logger.info(f"使用数据库自定义域名服务: {db_service.name}")
                     elif settings.custom_domain_base_url and settings.custom_domain_api_key:
diff --git a/static/js/email_services.js b/static/js/email_services.js
index b48e6eb..4ffd2dc 100644
--- a/static/js/email_services.js
+++ b/static/js/email_services.js
@@ -288,7 +288,7 @@ async function loadCustomServices() {
                         ${selectedCustom.has(service.id) ? 'checked' : ''}>
                 </td>
                 <td>${escapeHtml(service.name)}</td>
-                <td style="font-size: 0.75rem;">${escapeHtml(service.config?.api_url || '-')}</td>
+                <td style="font-size: 0.75rem;">${escapeHtml(service.config?.base_url || '-')}</td>
                 <td>
                     <span class="status-badge ${service.enabled ? 'active' : 'disabled'}">
                         ${service.enabled ? '启用' : '禁用'}
@@ -403,9 +403,9 @@ async function handleAddCustom(e) {
         service_type: 'custom_domain',
         name: formData.get('name'),
         config: {
-            api_url: formData.get('api_url'),
+            base_url: formData.get('api_url'),
             api_key: formData.get('api_key'),
-            domain: formData.get('domain')
+            default_domain: formData.get('domain')
         },
         enabled: formData.get('enabled') === 'on',
         priority: parseInt(formData.get('priority')) || 0
@@ -553,14 +553,14 @@ async function editCustomService(id) {
         // 填充表单
         document.getElementById('edit-custom-id').value = service.id;
         document.getElementById('edit-custom-name').value = service.name || '';
-        document.getElementById('edit-custom-api-url').value = service.config?.api_url || '';
+        document.getElementById('edit-custom-api-url').value = service.config?.base_url || '';
         document.getElementById('edit-custom-api-key').value = service.config?.api_key || '';
         document.getElementById('edit-custom-domain').value = service.config?.domain || '';
         document.getElementById('edit-custom-priority').value = service.priority || 0;
         document.getElementById('edit-custom-enabled').checked = service.enabled;
 
         // 清空密码提示
-        document.getElementById('edit-custom-api-key').placeholder = service.config?.api_key ? '已设置，留空保持不变' : 'API Key';
+        document.getElementById('edit-custom-api-key').placeholder = service.config?.has_api_key ? '已设置，留空保持不变' : 'API Key';
 
         // 显示模态框
         elements.editCustomModal.classList.add('active');
@@ -586,8 +586,8 @@ async function handleEditCustom(e) {
 
     // 构建配置
     const config = {
-        api_url: formData.get('api_url'),
-        domain: formData.get('domain')
+        base_url: formData.get('api_url'),
+        default_domain: formData.get('domain')
     };
 
     // 只有在填写了 API Key 时才更新
diff --git a/static/js/utils.js b/static/js/utils.js
index 4a1e14b..43c39ea 100644
--- a/static/js/utils.js
+++ b/static/js/utils.js
@@ -225,6 +225,10 @@ class ApiClient {
         return this.request(path, { ...options, method: 'PUT', body });
     }
 
+    patch(path, body, options = {}) {
+        return this.request(path, { ...options, method: 'PATCH', body });
+    }
+
     delete(path, options = {}) {
         return this.request(path, { ...options, method: 'DELETE' });
     }