相关疑难解决方法(0)

有没有办法让.NET Framework通过端口465上的SSL SMTP服务器发送电子邮件？

通常的方式:

System.Net.Mail.SmtpClient _SmtpServer = new System.Net.Mail.SmtpClient("tempurl.org");
_SmtpServer.Port = 465;
_SmtpServer.EnableSsl = true;
_SmtpServer.Credentials = new System.Net.NetworkCredential("username", "password");
_SmtpServer.Timeout = 5000;
_SmtpServer.UseDefaultCredentials = false;

MailMessage mail = new MailMessage();
mail.From = new MailAddress(from);
mail.To.Add(to);
mail.CC.Add(cc);
mail.Subject = subject;
mail.Body = content;
mail.IsBodyHtml = useHtml;
_SmtpServer.Send(mail);

超时:

System.Net Verbose: 0 : [1024] SmtpClient::.ctor(host=ssl0.ovh.net, port=465)
System.Net Information: 0 : [1024] Associating SmtpClient#64923656 with SmtpTransport#44624228
System.Net Verbose: 0 : [1024] Exiting SmtpClient::.ctor()  -> SmtpClient#64923656
System.Net Information: 0 : [1024] Associating MailMessage#17654054 …

此Go程序从我的家用计算机成功发送电子邮件,但在DigitalOcean上的虚拟服务器上收到以下错误:

panic: 530 5.5.1 Authentication Required. Learn more at

这是代码:

auth := smtp.PlainAuth("", "bjorkbjorksen@gmail.com", "PASSWORD", "smtp.gmail.com")
msg := "Subject: Hello\r\n\r\nWorld!"
e = smtp.SendMail("smtp.gmail.com:587", auth, "bjorkbjorksen@gmail.com", []string{email}, []byte(msg))
if e != nil { panic(e) }

我们有一个电子邮件帐户emailName@companyDomain.in，这是在Office365中配置的。我们想要使用 C# 中的emailName@companyDomain.in发送电子邮件。下面的代码有时有效，有时无效（大多数时候无效）。给出错误“无法从传输连接读取数据：net_io_connectionclose”。代码是

 public static void SendEmail(string toEmailId, string subject, string mailMessage)
    {
        string fromEmail = "emailName@companyDomain.in";
        MailMessage msg = new MailMessage();
        msg.To.Add(toEmailId);
        msg.From = new MailAddress(fromEmail, "Sender Name");
        msg.Subject = subject;
        msg.Body = mailMessage;
        msg.IsBodyHtml = true;

        SmtpClient client = new SmtpClient();
        client.UseDefaultCredentials = false; // Tried by commenting this too
        client.Credentials = new System.Net.NetworkCredential(fromEmail, "password");
        client.Port = 587; // Tried port number 25
        client.Host = "smtp.office365.com";
        client.DeliveryMethod = SmtpDeliveryMethod.Network;
        client.TargetName …