winform 发邮件

System.Net.Mail.SmtpClient client = new SmtpClient("smtp.163.com");

 

client.UseDefaultCredentials = false;

client.Credentials = new System.Net.NetworkCredential("From@163.com", "密码");

client.DeliveryMethod = SmtpDeliveryMethod.Network;

 

MailAddress addressFrom = new MailAddress("From@163.com", "我");

MailAddress addressTo = new MailAddress("To@163.com");

 

System.Net.Mail.MailMessage message = new MailMessage(addressFrom, addressTo);

message.Subject = "主题";

message.Body = "正文";

message.DeliveryNotificationOptions = DeliveryNotificationOptions.OnSuccess;

message.Attachments.Add(new Attachment(@"c:1.txt"));

message.Sender = new MailAddress("From@163.com");

message.BodyEncoding = System.Text.Encoding.UTF8;

message.IsBodyHtml = false;

 

client.Send(message);