邮件发送不成功的问题

[lxysjl]

版本. c#2.0
我发邮件时用163的免费邮件能正常发出邮件.但自己架的邮件服务器发送不成功，说操时．

我用c#1.1的能发送成功.

邮件服务器是winwebmail

[lxysjl]

用的是system.net.mail类

[yilesoft]

发送邮件示例代码
下面的 C# 示例代码将包含一个演示如何发送简单电子邮件的 Windows 控制台程序。当没有设置 SmtpMail 的 SmtpServer 属性时，本地机器将为其默认配置。你必须确保添加了针对 System.Web.dll 的引用，因为它是控制台应用程序而不是 ASP.NET 应用。

using System;
using System.Web.Mail;

namespace CodeGuru.SendMail
{
/// <summary>
/// Test console application to demonstrate sending e-mail.
/// </summary>
class TestMail
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
TestMail.Send("[e-mail]",
"[e-mail]",
"Test Message Using CDOSYS",
"Hello World! This is a simple message sent
using CDOSYS.");
}

/// <summary>
/// Send a message using the .NET wrapper for Collaborative Data
/// Objects (CDO). This method should be used when sending to a
/// single recipient only; otherwise, the list of recipients
/// will be known.
/// </summary>
/// <param name="MessageFrom">Message originator</param>
/// <param name="MessageTo">Message receipent</param>
/// <param name="MessageSubject">Message subject</param>
/// <param name="MessageBody">Message body</param>
public static void Send(string MessageFrom,
string MessageTo,
string MessageSubject,
string MessageBody)
{
MailMessage message = new MailMessage();
message.From = MessageFrom;
message.To = MessageTo;
message.Subject = MessageSubject;
message.BodyFormat = MailFormat.Text;
message.Body = MessageBody;

try
{
System.Console.WriteLine("Sending outgoing message");
SmtpMail.Send(message);
}
catch( System.Web.HttpException exHttp )
{
System.Console.WriteLine("Exception occurred:" +
exHttp.Message);
}
}
}
}

发送带有附件的邮件示例代码
下面的 C# 示例代码将包含一个演示如何发送带有附件的电子邮件的 Windows 控制台程序。这将由创建类 MessageAttachment 的实例，然后将其添加到 Attachments 集合来完成。

using System;
using System.Web.Mail;

namespace CodeGuru.SendMail
{
/// <summary>
/// console application to demonstrate sending e-mail with an
/// attachment.
/// </summary>
class TestMail
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
TestMail.SendAttachment("[e-mail]",
"[e-mail]",
"Test Message Using CDOSYS",
"Hello World! This is a simple
message sent using CDOSYS.",
"c:\\myattachment.txt");
}

/// <summary>
/// Send a message using the .NET wrapper for Collaborative Data
/// Objects (CDO). This method should be used when sending to
/// a single recipient only; otherwise, the list of recipients
/// will be known.
/// </summary>
/// <param name="MessageFrom">Message originator</param>
/// <param name="MessageTo">Message receipent</param>
/// <param name="MessageSubject">Message subject</param>
/// <param name="MessageBody">Message body</param>
/// <param name="MessageAttachmentPath">Path to attachment
/// </param>
public static void SendAttachment(string MessageFrom,
string MessageTo,
string MessageSubject,
string MessageBody,
string MessageAttachmentPath)
{
// Create and setup the message
MailMessage message = new MailMessage();
message.From = MessageFrom;
message.To = MessageTo;
message.Subject = MessageSubject;
message.BodyFormat = MailFormat.Text;
message.Body = MessageBody;

// Create and add the attachment
MailAttachment attachment = new
MailAttachment(MessageAttachmentPath);
message.Attachments.Add(attachment);

try
{
// Deliver the message
System.Console.WriteLine("Sending outgoing message");
SmtpMail.Send(message);
}
catch( System.Web.HttpException exHttp )
{
System.Console.WriteLine("Exception occurred:" +
exHttp.Message);
}
}
}
}

试试这个