如何不通过c＃代码发送测试电子邮件就检查已验证的电子邮件是否存在？ [英] how check a validated Email Exist Or Not Without Sending test Email by c# codes?

问题描述

如果不通过c＃代码发送测试电子邮件，我们如何检查是否存在已验证电子邮件？

我们可以通过多种方式检查该电子邮件的有效性... < br>
但是存在又如何呢？

是否可以这样做？

how can we check that a validated Email exist Or Not Without Sending test Email by c# codes?
we can check Validation of that email by many ways...
but what about existence?
is it possible to do that or not ?

预先感谢

推荐答案

您可以使用C＃运行一个cmd命令-telnet。然后将结果输出到文本文件，并将其读入C＃应用程序。这应该有帮助- http://www.webdigi.co.uk/blog/2009/how-to-check-if-an-email-address-exists-without-sending-an-email 您将但需要了解邮件服务器名称的详细信息。您也许可以直接从C＃执行此操作，但我只能通过telnet完成。

You could possibly use C# to run a cmd command - telnet. Then output the results to a text file and read them into to your C# app. This should help - http://www.webdigi.co.uk/blog/2009/how-to-check-if-an-email-address-exists-without-sending-an-email You will need to know the details for the mail server names though. You might be able to do this directly from C# but I have only done it through telnet.

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