如何验证电子邮件ID是否存在 [英] how to validate Email id exist or not

问题描述

我是Dnyaneshwar Gangurde Asp.net C＃的开发人员....我已经完成了电子邮件验证，但我想检查这个相关的电子邮件ID存在与否......

例如[e-mail] ...此电子邮件ID已在电子邮件中注册但如何签入ASP.NET C＃WEB APPLICATION ???

I'm Dnyaneshwar Gangurde Developer of Asp.net C#....I have done Email validation but i want to check this perticuler Email id Exist or Not..
E.g. [e-mail]... This Email id is registered on email but how to i check in ASP.NET C# WEB APPLICATION???

推荐答案

最简单的方法是：发送电子邮件到该地址，并要求回复。如果你收到它 - 不，不是服务器的自动错误回复！ - ，它存在。

当然，您可以在域存在之前进行检查，例如通过whois查询。但没有严肃的电子邮件提供商会为您提供注册帐户列表，因此您无论如何都必须发送电子邮件。

The simplest way is: send an email to that address, and ask for a reply. If you receive it - no, not an automated error reply from the server! - , it exists.
Well, of course, you can check before that the domain exists, e.g. by a whois query. But no serious email provider will give you a list of registered accounts, so you'll have to send the email anyway.

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