C# 发送纯文本的电子邮件（e-mail）

雨点打透心脏的1/2处 2024-02-17 23:41 20阅读 0赞

最近需要做个邮件提醒功能，使用公司的邮件服务器发送没问题，但我试着用 163 的邮箱去发，结果总是失败！

有待解决的有两个问题：一是 使用 其它服务器发送邮件，如 163的。二是 发送HTML 内容和附件

下面是使用异步发送和非异步的方法，这是部分代码说明发送邮件比较简单。横线下面是封的全部代码

/// <summary>  
/// 发送邮件  
/// </summary>  
public bool Send()  
\{  
MailMessage message = null;  
try  
\{  
message = new MailMessage(this.From, this.To, this.Subject, this.Body);  
message.IsBodyHtml = true;  
m\_client.Timeout = this.Timeout;  
message.Priority = System.Net.Mail.MailPriority.High;  
m\_client.Credentials = CredentialCache.DefaultNetworkCredentials;  
m\_client.Send(message);  
return true;  
\}  
catch (Exception ex)  
\{  
Grass.Log.ExceptionsStack.RegisterError(ex);  
return false;  
\}  
finally  
\{  
if (message != null)  
message.Dispose();  
\}  
\}  
\#region 异步发送  
/// <summary>  
/// 异步发送邮件  
/// </summary>  
public void SendAsync()  
\{  
MailMessage message = null;  
try  
\{  
message = new MailMessage(this.From, this.To, this.Subject, this.Body);  
message.IsBodyHtml = true;  
m\_client.Timeout = this.Timeout;  
message.Priority = System.Net.Mail.MailPriority.High;  
m\_client.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback);  
m\_client.Credentials = CredentialCache.DefaultNetworkCredentials;  
m\_client.SendAsync(message, "send e-mail");  
\}  
catch (Exception ex)  
\{  
Grass.Log.ExceptionsStack.RegisterError(ex);  
throw;  
\}  
finally  
\{  
//if (message != null)  
// message.Dispose();  
\}  
\}  
/// <summary>  
/// 异步邮件发送完成事件  
/// </summary>  
public void SendCompletedCallback(object sender, AsyncCompletedEventArgs e)  
\{  
if (this.OnSendComplete != null)  
\{  
// Get the unique identifier for this asynchronous operation.  
String token = (string)e.UserState;

if (e.Cancelled)  
\{  
OnSendComplete(false, token, string.Format("\[\{0\}\] 发送取消.", token));  
\}  
else if (e.Error != null)  
\{  
OnSendComplete(false, token, string.Format("\[\{0\}\] 发送错误：\{1\}", token, e.Error.Message));  
\}  
else  
\{  
OnSendComplete(false, token, string.Format("\[\{0\}\] 发送成功.", token));  
\}  
\}  
\}

\#endregion

\--------------------------------------------------------------------------------------------------------------

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.Net.Mail;  
using System.Net;  
using System.ComponentModel;

namespace Grass.Framework.Mail  
\{  
/// <summary>  
/// 使用 SMTP(Simple Mail Transfer Protocol) 邮件协议发送邮件  
/// </summary>  
public class SmtpHelper:IMailHelper  
\{  
/// <summary>  
/// 使用 SMTP 协议发送 E-mail  
/// </summary>  
/// <param name="host">发件服务器</param>  
public SmtpHelper(string host)  
\{  
this.Host = host;  
m\_client = new SmtpClient(host);  
\}  
/// <summary>  
/// 使用 SMTP 协议发送 E-mail  
/// </summary>  
/// <param name="host">发件服务器（IP）</param>  
/// <param name="prot">发件服务器端口号</param>  
public SmtpHelper(string host, int prot)  
\{  
this.Host = host;  
this.Prot = prot;  
m\_client = new SmtpClient(host, prot);  
\}  
private int m\_timeout = 1000;  
private SmtpClient m\_client = null;  
/// <summary>  
/// 发件服务器  
/// </summary>  
public string Host \{ set; get; \}  
/// <summary>  
/// 发件服务器端口号  
/// </summary>  
public int Prot \{ set; get; \}  
/// <summary>  
/// 发件超时时间  
/// </summary>  
public int Timeout  
\{  
set \{ m\_timeout = value; \}  
get \{ return m\_timeout; \}  
\}  
/// <summary>  
/// 发送到，如果多个邮箱使用 半角逗号分隔开  
/// </summary>  
public string To \{ set; get; \}  
/// <summary>  
/// 发送者  
/// </summary>  
public string From \{ set; get; \}  
/// <summary>  
/// 主题  
/// </summary>  
public string Subject \{ set; get; \}  
/// <summary>  
/// 发送内容  
/// </summary>  
public string Body \{ set; get; \}

/// <summary>  
/// 邮件发送成功后触发  
/// </summary>  
public event SendCompleteHander OnSendComplete;

\#endregion

\}  
\}

转载请保留：http://write.blog.csdn.net/postedit/7569808