如何在asp.net中发送http请求而无需等待响应并且不占用资源

In an ASP.Net application, I need to send some data (urlEncodedUserInput) via http POST to an external server in response to user input, without holding up the page response. It doesn't matter what the response from the other server is, and I don't care if the request fails sometimes. This seems to be operating fine (see below) but I'm concerned that it's tying up resources in the background waiting for a response that will never be used.In an ASP.Net application, I need to send some