通过Gmail帐户发送电子邮件问题

Question

我正尝试使用Gmail在C＃中发送电子邮件。每当用户收到电子邮件时，我都希望“发件人”标题拥有另一个自己指定的电子邮件地址。任何人都可以告诉我我该怎么做？

MailMessage mailMsg = new MailMessage(); 
SmtpClient client = new SmtpClient(); 

client.Port = 587; 
client.Host = "smtp.gmail.com"; 
client.EnableSsl = true; 
client.Credentials = new System.Net.NetworkCredential(username, password); 
MailAddress mailAdd = new MailAddress("jack2@gmail.com"); 

mailMsg.Sender = new MailAddress(username); 
mailMsg.From = mailAdd; 
//mailMsg.Headers.Add("Sender",username); 
mailMsg.Bcc.Add(builder.ToString()); 

mailMsg.Subject = txtSubject.Text; 
mailMsg.Body = txtBody.Text; 
mailMsg.IsBodyHtml = chkHtmlBody.Checked; 
if (System.IO.File.Exists(txtAttechments.Text)) 
{ 
System.Net.Mail.Attachment attechment = new Attachment(txtAttechments.Text); 
mailMsg.Attachments.Add(attechment); 
} 

client.Send(mailMsg); 

在上面的代码'用户名'和'密码'字段中包含另一个电子邮件地址和密码。收到的电子邮件有'来自'标头，值为

Answer 1

如果您的邮件提供的不是Gmail，也不使用IMAP服务，请尝试此操作。

MailMessage mailMsg = new MailMessage(); 
SmtpClient client = new SmtpClient(); 

client.Port = 587; 
client.Host = "mail.youdomain.com"; //////EDITED 
client.EnableSsl = false; //////EDITED 
client.Credentials = new System.Net.NetworkCredential(username, password); 
MailAddress mailAdd = new MailAddress("jack2@gmail.com"); 

mailMsg.Sender = new MailAddress(username); 
mailMsg.From = mailAdd; 
//mailMsg.Headers.Add("Sender",username); 
mailMsg.Bcc.Add(builder.ToString()); 

mailMsg.Subject = txtSubject.Text; 
mailMsg.Body = txtBody.Text; 
mailMsg.IsBodyHtml = chkHtmlBody.Checked; 
if (System.IO.File.Exists(txtAttechments.Text)) 
{ 
System.Net.Mail.Attachment attechment = new Attachment(txtAttechments.Text); 
mailMsg.Attachments.Add(attechment); 
} 

client.Send(mailMsg);