本文实例讲述了C#实现的自定义邮件发送类。分享给大家供大家参考，具体如下：
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using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
namespace ConsoleApplication1
{
/// <summary>
/// 发送邮件类 的摘要说明
/// </summary>
class SendMail
{
#region 数据成员
//收件人地址
private string m_To = "";
//发件人地址
private string m_From = "";
//邮件标题
private string m_Subject = "";
//邮件正文
private string m_Body = "";
//发送服务器名或地址
private string m_Host = "";
//发件人用户名
private string m_UserName = "";
//发件人密码
private string m_Password = "";
//邮件附件
private string m_File = "";
#endregion
#region 构造函数
/// <summary>
/// 构造函数重载
/// </summary>
/// <param name="to">收件人地址</param>
/// <param name="from">发件人地址</param>
/// <param name="subject">邮件标题</param>
/// <param name="body">邮件正文</param>
/// <param name="host">发送邮件服务器名或地址</param>
/// <param name="userName">发件人用户名</param>
/// <param name="password">发件人密码</param>
public SendMail(string to, string from, string subject, string body, string host, string userName, string password, string fileName)
{
m_To = to;
m_From = from;
m_Subject = subject;
m_Body = body;
m_Host = host;
m_UserName = userName;
m_Password = password;
m_File = fileName;
}
#endregion
#region 数据属性
//收件人地址
public string TO
{
get
{
return m_To;
}
set
{
m_To = value;
}
}
//发件人地址
public string From
{
get
{
return m_From;
}
set
{
m_From = value;
}
}
//邮件标题
public string Subject
{
get
{
return m_Subject;
}
set
{
m_Subject = value;
}
}
//邮件正文
public string Body
{
get
{
return m_Body;
}
set
{
m_Body = value;
}
}
//服务器地址（名）
public string Host
{
get
{
return m_Host;
}
set
{
m_Host = value;
}
}
//发件人的用户名
public string UserName
{
get
{
return m_UserName;
}
set
{
m_UserName = value;
}
}
//发件人的密码
public string Password
{
get
{
return m_Password;
}
set
{
m_Password = value;
}
}
//邮件附件
public string File
{
get
{
return m_File;
}
set
{
m_File = value;
}
}
#endregion
/// <summary>
/// 发送邮件
/// </summary>
/// <returns>发送是否成功</returns>
public bool Send()
{
try
{
//获取所有的收件人地址
char[] ch = { ',' };
string[] address = m_To.Split(ch);
MailAddressCollection allAddress = new MailAddressCollection();
for (int i = 0; i < address.Length; i++)
{
//收件人地址
MailAddress toAddress = new MailAddress(address[i]);
allAddress.Add(toAddress);
//发件人地址
MailAddress fromAddress = new MailAddress(m_From);
//定义邮件消息
MailMessage msg = new MailMessage(fromAddress, toAddress);
//邮件标题
msg.Subject = m_Subject;
//邮件正文
msg.Body = m_Body;
//获取所有邮件附件
char[] cr = { ';' };
string[] file = m_File.Split(cr);
for (int n = 0; n < file.Length; n++)
{
if (file[n] != "")
{
//附件对象
Attachment data = new Attachment(file[n], MediaTypeNames.Application.Octet);
//附件资料
ContentDisposition disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file[n]);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file[n]);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file[n]);
//加入邮件附件
msg.Attachments.Add(data);
}
}
//使用简单邮件传输协议来传送邮件
SmtpClient sendMail = new SmtpClient();
//发送邮件的服务器名或地址
sendMail.Host = m_Host;
//验证发件人的身份
sendMail.Credentials = new NetworkCredential(m_UserName, m_Password);
//处理待发送邮件的方法
sendMail.DeliveryMethod = SmtpDeliveryMethod.Network;
//发送邮件
sendMail.Send(msg);
}
return true;
}
catch (Exception ex)
{
return false;
}
}
}
}
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希望本文所述对大家C#程序设计有所帮助。