C# 无法连接到远程服务器
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Unable to connect to remote server
提问by thesma
I am new to C# and I am trying to send an email from a desktop program I am developing. Here is the code I am using but I keep getting the error below :
我是 C# 新手，我正在尝试从我正在开发的桌面程序发送电子邮件。这是我正在使用的代码，但我不断收到以下错误：
System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage();
message.To.Add("[email protected]");
message.Subject = "This is the Subject line";
message.From = new System.Net.Mail.MailAddress("[email protected]");
message.Body = "This is the message body";
System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient("smtp.gmail.com",578);
smtp.EnableSsl = true;
smtp.Send(message);
I can't seem to find out what the problem is...
我似乎无法找出问题所在......
采纳答案by BigBadOwl
You need to set the credentials for Gmail
您需要为 Gmail 设置凭据
var client = new SmtpClient("smtp.gmail.com", 587)
{
Credentials = new NetworkCredential("[email protected]", "mypwd"),
EnableSsl = true
};
client.Send("[email protected]", "[email protected]", "test", "testbody");
回答by Brad Christie
Missing credentials most likely:
最有可能缺少凭据：
smtp.Credentials = new System.Net.NetworkCredential("[email protected]", "password");
So:
所以：
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
smtp.Credentials = new System.Net.NetworkCredential("[email protected]", "Password");
smtp.EnableSsl = true;
smtp.Send(message);
Alternatively, you can store (almost all) this stuff in the app.config, though I'm not sure how secure you need it to be since the user/pass would be plainly visible to any user that opens the application's directory (and that file). For completion's sake:
或者，您可以将（几乎所有）这些东西存储在app.config. 为了完成：
<system.net>
<mailSettings>
<smtp from="[email protected]">
<network host="smtp.gmail.com"
enableSsl="true"
userName="[email protected]"
password="password"
port="587" />
</smtp>
</mailSettings>
</system.net>
回答by Jorgesys
Network credentials are very important, but sometimes we need to check if port 587is blocked.
网络凭据非常重要，但有时我们需要检查端口587是否被阻止。
SmtpClient client = new SmtpClient();
client.Credentials = new System.Net.NetworkCredential("[email protected]", "whocaresdupe");
client.Port = 587;
client.Host = "smtp.gmail.com";
client.EnableSsl = true;
try
{
client.Send(mail);
} catch (Exception ex)
{
Page.RegisterStartupScript("UserMsg", "<script>alert('Successfully Send...');if(alert){ window.location='SendEmail.aspx';}</script>");
}
回答by user6082735
My company blocks desktop/laptops from sending email using a setting in McAfee. Check the Windows Event view to see if there is an entry that an email was blocked.
我的公司使用 McAfee 中的设置阻止台式机/笔记本电脑发送电子邮件。检查 Windows 事件视图以查看是否有电子邮件被阻止的条目。
