用的邮箱是腾讯企业邮箱， smtp发送邮件 的服务器地址应该是:smtp.exmail.qq.com 吧
string mailServerName = “smtp.exmail.qq.com”;
string mailFrom = “cwszflow@xxxx”;
string mailTo = “xxxx”; /
string subject = “xxxx”;
string body = “这里是邮件正文了 “;
MailMessage mailmessage = new MailMessage();
mailmessage.To.Add(mailTo);
mailmessage.Subject = subject;
mailmessage.Body = body;
mailmessage.IsBodyHtml = true;
mailmessage.From = new MailAddress(mailFrom);
SmtpClient smtpclient = new SmtpClient();
smtpclient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
smtpclient.EnableSsl = true;
smtpclient.Host = mailServerName;
smtpclient.Port = 465;
smtpclient.Timeout = 60000;
smtpclient.Credentials = new NetworkCredential(“cwszflow”, “aa6688”);
smtpclient.Send(mailmessage);
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