我有一个标准的Google Apps帐户.我已通过Google Apps设置了自定义域名.当我使用Gmail界面时,我可以通过Google Apps成功发送和接收电子邮件.但是,我想通过代码发送电子邮件.为了尝试这个,我一直在尝试以下代码:
MailMessage mailMessage = new MailMessage();
mailMessage.To.Add("someone@somewhere.com");
mailMessage.Subject = "Test";
mailMessage.Body = "<html><body>This is a test</body></html>";
mailMessage.IsBodyHtml = true;
// Create the credentials to login to the gmail account associated with my custom domain
string sendEmailsFrom = "emailAddress@mydomain.com";
string sendEmailsFromPassword = "password";
NetworkCredential cred = new NetworkCredential(sendEmailsFrom, sendEmailsFromPassword);
SmtpClient mailClient = new SmtpClient("smtp.gmail.com", 587);
mailClient.EnableSsl = true;
mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
mailClient.UseDefaultCredentials = false;
mailClient.Timeout = 20000;
mailClient.Credentials = cred;
mailClient.Send(mailMessage);
到达Send方法时,抛出异常,指出:
"SMTP服务器需要安全连接或客户端未经过身份验证.服务器响应为:5.5.1需要身份验证."
如何通过Google通过自定义域发送电子邮件？
谢谢!