# 端口访问

### 默认访问权限

通过代理，以下端口默认可访问：

* `80`
* `443`
* `5228`
* `53`
* `5060`
* `8080`
* `8090`
* `8443`
* `853`

#### 受限端口

受限端口包括 SMTP、IMAP 以及与邮件和消息传递相关的其他各种端口。

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### 端口解封流程

如需申请解封端口，请通过以下方式联系我们 <support@dataimpulse.com> 并提供以下信息：

* 指明需要开放的端口。
* 清楚描述该端口的使用场景——尽可能提供详尽信息。
* 包括您打算通过该端口访问的具体目标。

出于安全考虑，用户可能需要完成 KYC 审核，方可批准其解封请求。


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.dataimpulse.com/dataimpulse-documentation-zh-cn/duan-kou-fang-wen.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.