C#发送邮件

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Net.Mail;

using System.ComponentModel;

public partial class WebMail_Mail : System.Web.UI.Page

{

static bool mailSent = false;

static string ReturnString = "";

public static void SendCompletedCallback(object sender, AsyncCompletedEventArgs e)

{

// Get the unique identifier for this asynchronous operation.

String token = (string)e.UserState;

if (e.Cancelled)

{

ReturnString = token + " Send canceled.";

//Response.Write(ss);

}

if (e.Error != null)

{

//Response.Write(token +" "+e.Error.ToString());

ReturnString = token + " " + e.Error.ToString();

}

else

{

//Response.Write("Message sent.");

ReturnString = "Message sent.";

}

mailSent = true;

}

protected void Page_Load(object sender, EventArgs e)

{

/*

MailMessage msg = new MailMessage();

//

MailAddress Fr_address = new MailAddress("oapro_test@163.com", "oapro_test");

MailAddressCollection cc_address = new MailAddressCollection();

cc_address.Add("oapro_test@163.com");

msg.From = Fr_address;

msg.Subject = "this is a test By bxf";

msg.Body = "白肖凤测试";

//身份严正

System.Net.ICredentialsByHost Credential;

//

SmtpClient smtp = new SmtpClient("smtp.163.com",25);

smtp.Timeout = 30;

//smtp.Send(msg);

smtp.Credentials =

*/

/*

System.Net.Mail.SmtpClient client = new SmtpClient("smtp.163.com",25);

client.UseDefaultCredentials = true;

client.Credentials = new System.Net.NetworkCredential("oapro_test", "");

client.DeliveryMethod = SmtpDeliveryMethod.Network;

System.Net.Mail.MailMessage message = new MailMessage("oapro_test@163.com", "oapro_test@163.com", "this is a test By bxf", "白肖凤测试");

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

message.IsBodyHtml = true;

try

{

client.Send(message);

}

catch (System.Net.Mail.SmtpException ex)

{

Response.Write(ex.ToString());

}

)*/

// Command line argument must the the SMTP host.

SmtpClient client = new SmtpClient("smtp.163.com",25);

//验证

client.UseDefaultCredentials = true;

client.Credentials = new System.Net.NetworkCredential("", "");

client.DeliveryMethod = SmtpDeliveryMethod.Network;

// Specify the e-mail sender.

// Create a mailing address that includes a UTF8 character

// in the display name.

MailAddress from = new MailAddress("bxf0011@163.com",

"Jane " + (char)0xD8+ " Clayton",

System.Text.Encoding.UTF8);

// Set destinations for the e-mail message.

MailAddress to = new MailAddress("oapro_test@163.com");

// Specify the message content.

MailMessage message = new MailMessage(from, to);

message.Body = "This is a test e-mail message sent by an application. ";

// Include some non-ASCII characters in body and subject.

string someArrows = new string(new char[] {'\u2190', '\u2191', '\u2192', '\u2193'});

message.Body += Environment.NewLine + someArrows;

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

message.Subject = "test message 1" + someArrows;

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

// Set the method that is called back when the send operation ends.

client.SendCompleted += new

SendCompletedEventHandler(SendCompletedCallback);

// The userState can be any object that allows your callback

// method to identify this send operation.

// For this example, the userToken is a string constant.

string userState = "test message1";

try

{

// client.SendAsync(message, userState);

client.Send(message);

Response.Write("Sending message... press c to cancel mail. Press any other key to exit.");

string answer = ReturnString;

// If the user canceled the send, and mail hasn't been sent yet,

// then cancel the pending operation.

if (answer.StartsWith("c") && mailSent == false)

{

client.SendAsyncCancel();

}

// Clean up.

message.Dispose();

Response.Write("Goodbye.");

}

catch (System.Net.Mail.SmtpException ex)

{

Response.Write(ex.ToString());

}

}

}