我正在使用以下代码发送电子邮件。代码在我的本地机器上正常工作。但是在生产服务器上,我得到了错误消息

var fromAddress = new MailAddress("mymailid@gmail.com");
var fromPassword = "xxxxxx";
var toAddress = new MailAddress("yourmailid@yourdoamain.com");

string subject = "subject";
string body = "body";

System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network,
    UseDefaultCredentials = false,
    Credentials = new NetworkCredential(fromAddress.Address, fromPassword)       
};

using (var message = new MailMessage(fromAddress, toAddress)
{
    Subject = subject,
    Body = body
})

smtp.Send(message);

在我的Gmail A/c上,我从生产服务器运行代码后收到了以下电子邮件

Hi , Someone recently used your password to try to sign in to your Google Account mymailid@gmail.com. This person was using an application such as an email, client or mobile device. We prevented the sign-in attempt in case this was a hijacker trying to access your account. Please review the details of the sign-in attempt: Friday, 3 January 2014 13:56:08 o'clock UTC IP Address: xxx.xx.xx.xxx (abcd.net.) Location: Philadelphia PA, Philadelphia, PA, USA If you do not recognise this sign-in attempt, someone else might be trying to access your account. You should sign in to your account and reset your password immediately. Reset password If this was you and you are having trouble accessing your account, complete the troubleshooting steps listed at http://support.google.com/mail?p=client_login Yours sincerely, The Google Accounts team


当前回答

尝试改变主机,这是一个新的,我得到了这个配置mozilla雷鸟

Host = "smtp.googlemail.com"

这对我很有用

其他回答

尝试改变主机,这是一个新的,我得到了这个配置mozilla雷鸟

Host = "smtp.googlemail.com"

这对我很有用

下面是我的代码。我也有同样的错误,但问题是我给我的密码错误。下面的代码将完美地工作..尝试一下

            MailMessage mail = new MailMessage();
            SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");             
            mail.From = new MailAddress("fromaddress@gmail.com");
            mail.To.Add("toaddress1@gmail.com");
            mail.To.Add("toaddress2@gmail.com");
            mail.Subject = "Password Recovery ";
            mail.Body += " <html>";
            mail.Body += "<body>";
            mail.Body += "<table>";
            mail.Body += "<tr>";
            mail.Body += "<td>User Name : </td><td> HAi </td>";
            mail.Body += "</tr>";

            mail.Body += "<tr>";
            mail.Body += "<td>Password : </td><td>aaaaaaaaaa</td>";
            mail.Body += "</tr>";
            mail.Body += "</table>";
            mail.Body += "</body>";
            mail.Body += "</html>";
            mail.IsBodyHtml = true;
            SmtpServer.Port = 587;
            SmtpServer.Credentials = new System.Net.NetworkCredential("sendfrommailaddress.com", "password");
            SmtpServer.EnableSsl = true;
            SmtpServer.Send(mail);

你可以在我的博客里查阅

嗨,我也有同样的问题,

我是怎么解决它的。就是打开不太安全的应用。 在连接到我的gmail帐户后。我输入了这个链接:https://www.google.com/settings/security/lesssecureapps

然后我打开安全应用程序,它就工作了。 上面也说过

不要在等待smtp.SendMailAsync(邮件)前设置断点;

:)

当它等待一个断点给出这个错误时,当我删除断点时,它已经工作了

Tomasz Madeyski的评论解决了我的问题…他告诉存在一个错误的SetDefaultCredential,他说:

问题是在UseDefaultCredentials setter中有这样的代码:this.transport. credentials = value ?(ICredentialsByHost) CredentialCache。DefaultNetworkCredentials: (ICredentialsByHost) null;它覆盖由凭证设置器设置的凭证。对我来说,它看起来像SmtpClient的bug。”

如果你输入smtpClient。设置凭证后UseDefaultCredentials = false…这一行设置为空这些凭据…