不能AUTH以MAILMESSAGE通过放大器和SMTP的Gmail; smtpClient [英] Can't auth to Gmail smtp via MailMessage & smtpClient

问题描述

我无法弄清楚的生命我这是为什么不工作

I cannot figure out for the life of my why this isn't working

SmtpClient smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    UseDefaultCredentials = false,
    DeliveryMethod = SmtpDeliveryMethod.Network,
    Credentials = new NetworkCredential("[e-mail]", "myGmailPasswordHere"),
    EnableSsl = true,
    Timeout = 10000
};


smtp.Send(mail);

我得到：

SMTP服务器要求安全连接或客户端未通过身份验证。服务器响应为：5.5.1需要验证

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.

我刚才指定EnableSsl为true，这样不应该在安全连接方面的问题。

I just specified EnableSsl to true so that shouldn't be the issue in terms of secure connection.

我是从本地主机上运行此。是的，我的用户名和密码，我进入权威性地（我的Gmail帐户凭据）是100％正确的。

I'm running this from localhost. And yes, my username and password I'm entering to auth (my gmail account credentials) is 100% right.

推荐答案

我知道这是一个老话题，但...谷歌已经对他们的安全设置，改变了一些东西。

I know this is an old topic, BUT... Google has changed something on their security settings.

与所有的答案挣扎，直到我检查我的电子邮件与谷歌指出，我们最近阻止您谷歌帐户登录尝试邮件。

Was struggling with all the answers until I checked my email with a mail from Google stating that "we've recently blocked a sign-in attempt on your Google account".

这使我这个页面：
谷歌帐户安全

在安全性较低的应用程序访问部分中，您可以启用来自其他设备/应用程序访问您的帐户...喜欢你的C＃应用​​程序。

Under the "Access for less secure apps" section, you can enable access to your account from other devices/applications... like your C# application.

请注意，有一个专用部分不再。

Note, there is no longer an "application specific" section.

希望这可以帮助别人......我只是失去了我的生活30分钟...

Hope this helps someone... I just lost 30 minutes of my life...

这篇关于不能AUTH以MAILMESSAGE通过放大器和SMTP的Gmail; smtpClient的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！