C#发送邮件帮助类

using System;
using System.Collections.Generic;
using System.IO;
using System.Net.Mail;
using System.Net.Mime;
using System.Text;
using System.Xml;

namespace LCPlatform.Toolkits.Utility
{
public class EmailHelper
{

private MailMessage mMailMessage; //主要处理发送邮件的内容（如：收发人地址、标题、主体、图片等等）
private SmtpClient mSmtpClient; //主要处理用smtp方式发送此邮件的配置信息（如：邮件服务器、发送端口号、验证方式等等）
private int mSenderPort; //发送邮件所用的端口号（htmp协议默认为25）
private string mSenderServerHost; //发件箱的邮件服务器地址（IP形式或字符串形式均可）
private string mSenderPassword; //发件箱的密码
private string mSenderUsername; //发件箱的用户名（即@符号前面的字符串，例如：hello@163.com，用户名为：hello）
private bool mEnableSsl; //是否对邮件内容进行socket层加密传输
private bool mEnablePwdAuthentication; //是否对发件人邮箱进行密码验证

/// <summary>
/// 构造函数
/// </summary>
/// <param name="server">发件箱的邮件服务器地址</param>
/// <param name="toMail">收件人地址（可以是多个收件人，程序中是以“;"进行区分的）</param>
/// <param name="fromMail">发件人地址</param>
/// <param name="subject">邮件标题</param>
/// <param name="emailBody">邮件内容（可以以html格式进行设计）</param>
/// <param name="displayName">发送后显示发送人邮件地址的别名</param>
/// <param name="username">发件箱的用户名（即@符号前面的字符串，例如：hello@163.com，用户名为：hello）</param>
/// <param name="password">发件人邮箱密码</param>
/// <param name="port">发送邮件所用的端口号（htmp协议默认为25）</param>
/// <param name="sslEnable">true表示对邮件内容进行socket层加密传输，false表示不加密</param>
/// <param name="pwdCheckEnable">true表示对发件人邮箱进行密码验证，false表示不对发件人邮箱进行密码验证</param>
public EmailHelper(string server, string toMail, string fromMail, string subject, string emailBody, string displayName, string username, string password, string port, bool sslEnable, bool pwdCheckEnable)
{
try
{
mMailMessage = new MailMessage();
//遍历收件人邮箱地址，并添加到此邮件的收件人里
if (!string.IsNullOrEmpty(toMail))
{
string[] receivers = toMail.Trim().Split(';');
for (int i = 0; i < receivers.Length; i++)
{
if (string.IsNullOrEmpty(receivers[i])) continue;
mMailMessage.To.Add(receivers[i]);
}
}
// mMailMessage.To.Add(toMail);

mMailMessage.From = new MailAddress(fromMail, displayName);
mMailMessage.Subject = subject;
mMailMessage.Body = emailBody;
mMailMessage.IsBodyHtml = true;
mMailMessage.BodyEncoding = System.Text.Encoding.UTF8;
mMailMessage.Priority = MailPriority.Normal;
this.mSenderServerHost = server;
this.mSenderUsername = username;
this.mSenderPassword = password;
this.mSenderPort = Convert.ToInt32(port);
this.mEnableSsl = sslEnable;
this.mEnablePwdAuthentication = pwdCheckEnable;
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
}

/// <summary>
/// 添加附件
/// </summary>
/// <param name="attachmentsPath">附件的路径集合，以分号分隔</param>
public void AddAttachments(string attachmentsPath)
{
try
{
string[] path = attachmentsPath.Split(';'); //以什么符号分隔可以自定义
Attachment data;
ContentDisposition disposition;
for (int i = 0; i < path.Length; i++)
{
data = new Attachment(path[i], MediaTypeNames.Application.Octet);
disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(path[i]);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(path[i]);
disposition.ReadDate = System.IO.File.GetLastAccessTime(path[i]);
mMailMessage.Attachments.Add(data);
}
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
}

/// <summary>
/// 添加附件
/// </summary>
/// <param name="attachmentsPath">附件的路径集合，以分号分隔</param>
public void AddAttachments(Dictionary<string, Stream> filedic)
{
try
{
Attachment data;
ContentDisposition disposition;
foreach (var item in filedic)
{
data = new Attachment(item.Value, item.Key, MediaTypeNames.Text.Plain);

disposition = data.ContentDisposition;
disposition.CreationDate = System.DateTime.Now;
disposition.ModificationDate = System.DateTime.Now;
disposition.ReadDate = System.DateTime.Now;
mMailMessage.Attachments.Add(data);
}
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
}

/// <summary>
/// 邮件的发送
/// </summary>
/// <returns>true:发送成功</returns>
public bool Send()
{
if (!GetMailSetting.IsEnable)
{
return false;
}
bool flag = false;
try
{
if (mMailMessage != null)
{
mSmtpClient = new SmtpClient();
mSmtpClient.Host = this.mSenderServerHost;
mSmtpClient.Port = 25;//this.mSenderPort;
mSmtpClient.UseDefaultCredentials = false;
//mSmtpClient.EnableSsl = this.mEnableSsl;
mSmtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
mSmtpClient.UseDefaultCredentials = false;

if (this.mEnablePwdAuthentication)
{
System.Net.NetworkCredential nc = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
mSmtpClient.Credentials = nc.GetCredential(mSmtpClient.Host, mSmtpClient.Port, "NTLM");
}
else
{
mSmtpClient.Credentials = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
}

mSmtpClient.Send(mMailMessage);
flag = true;
}
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
return flag;
}
/// <summary>
/// 获取邮件配置
/// </summary>
public static MailSetting GetMailSetting
{
get
{
/* XmlDocument doc = new XmlDocument();
doc.Load( System.IO.Directory.GetCurrentDirectory() +"\Config\Mail.config");
MailSetting smtpSetting = new MailSetting();
smtpSetting.Server = doc.DocumentElement.SelectSingleNode("SmtpServer").InnerText;
smtpSetting.Authentication = Convert.ToBoolean(doc.DocumentElement.SelectSingleNode("Authentication").InnerText);
smtpSetting.From = doc.DocumentElement.SelectSingleNode("From").InnerText;
smtpSetting.Password = doc.DocumentElement.SelectSingleNode("Pwd").InnerText;
smtpSetting.ShowName = doc.DocumentElement.SelectSingleNode("ShowName").InnerText;
smtpSetting.SmtpPort = Convert.ToInt32(doc.DocumentElement.SelectSingleNode("SmtpPort").InnerText);
smtpSetting.IsEnable = true;//Convert.ToBoolean(doc.DocumentElement.SelectSingleNode("Enable").InnerText);
return smtpSetting;*/

XmlDocument doc = new XmlDocument();
//doc.Load( System.IO.Directory.GetCurrentDirectory() +"\Config\Mail.config");
MailSetting smtpSetting = new MailSetting();
smtpSetting.Server = "smtp.163.com";// doc.DocumentElement.SelectSingleNode("SmtpServer").InnerText;
smtpSetting.Authentication = false;//Convert.ToBoolean(doc.DocumentElement.SelectSingleNode("Authentication").InnerText);
smtpSetting.From = "sunzhenlin163@163.com";// doc.DocumentElement.SelectSingleNode("From").InnerText;
smtpSetting.Password = "a860423ab";// doc.DocumentElement.SelectSingleNode("Pwd").InnerText;
smtpSetting.ShowName = "sunzhenlin";// doc.DocumentElement.SelectSingleNode("ShowName").InnerText;
smtpSetting.SmtpPort = Convert.ToInt32(25);//doc.DocumentElement.SelectSingleNode("SmtpPort").InnerText);
smtpSetting.IsEnable = true;//Convert.ToBoolean(doc.DocumentElement.SelectSingleNode("Enable").InnerText);
return smtpSetting;
}
}
#region 邮件发送
/// <summary>
/// 发送邮件
/// </summary>
/// <param name="to">收件人地址</param>
/// <param name="title">标题</param>
/// <param name="body">内容</param>
/// <returns></returns>
public static bool SendMail2(string to, string title, string body, string attachPath)
{
bool flag = false;
try
{
body = string.Format("{0}<br/><br/><span style='color:#f00;font-size:15px;'>", body);
EmailHelper email = new EmailHelper(GetMailSetting.Server, to, GetMailSetting.From, title, body, GetMailSetting.ShowName, GetMailSetting.From, GetMailSetting.Password, Convert.ToString(GetMailSetting.SmtpPort), false, false);
email.AddAttachments(attachPath);
email.Send();
flag = true;
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
return flag;
}

public static bool SendMail(string to, string title, string body, string attachPath, MailSetting Setting)
{
bool flag = false;
try
{
body = string.Format("{0}<br/><br/><span style='color:#f00;font-size:15px;'>", body);
EmailHelper email = new EmailHelper(Setting.Server, to, Setting.From, title, body, Setting.ShowName, Setting.From, Setting.Password, Convert.ToString(Setting.SmtpPort), false, false);
email.AddAttachments(attachPath);
email.Send();
flag = true;
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
return flag;
}
/// <summary>
/// 流发送
/// </summary>
/// <param name="to">收件人地址</param>
/// <param name="title">邮件标题</param>
/// <param name="body">邮件内容</param>
/// <param name="filedic"></param>
/// <param name="Setting"></param>
/// <returns></returns>
public static bool SendMailWithSteam(string to, string title, string body, Dictionary<string, Stream> filedic, MailSetting Setting)
{
bool flag = false;
try
{
body = string.Format("{0}<br/><br/><span style='color:#f00;font-size:15px;'>", body);
EmailHelper email = new EmailHelper(Setting.Server, to, Setting.From, title, body, Setting.ShowName, Setting.From, Setting.Password, Convert.ToString(Setting.SmtpPort), false, false);
email.AddAttachments(filedic);
email.Send();
flag = true;
}
catch //(Exception ex)
{
//Console.WriteLine(ex.ToString());
}
return flag;
}
#endregion
}

#region 邮件配置参数实体
/// <summary>
/// 邮件配置参数实体
/// </summary>
public class MailSetting
{
/// <summary>
/// 是否启用邮件
/// </summary>
public bool IsEnable
{
get;
set;
}
/// <summary>
/// 端口
/// </summary>
public int SmtpPort
{
get;
set;
}
/// <summary>
/// 邮件服务器地址
/// </summary>
public string Server
{
get;
set;
}
/// <summary>
/// 是否验证发件人用户名和密码
/// </summary>
public bool Authentication
{
get;
set;
}
/// <summary>
/// 发件人地址
/// </summary>
public string From
{
get;
set;
}
/// <summary>
/// 发件人地址的别名
/// </summary>
public string ShowName
{
get;
set;
}
/// <summary>
/// 发件人密码
/// </summary>
public string Password
{
get;
set;
}
}
#endregion

}