1. 配置文件 App.config
<?xml version="1.0" encoding="utf-8" ?> <configuration> <appSettings> <!-- Smtp 服务器 --> <add key="SmtpHost" value="smtp.qq.com" /> <!-- Smtp 服务器端口 --> <add key="SmtpPort" value="25" /> <!--发送者 Email 地址--> <add key="FromEmailAddress" value="xx@qq.com" /> <!--发送者 Email 密码--> <add key="FormEmailPassword" value="??????" /> </appSettings> </configuration>
2.帮助类代码
using System; using System.Collections.Generic; using System.Configuration; using System.Linq; using System.Net; using System.Net.Mail; using System.Text; namespace ConsoleApplication1 { /// <summary> /// Author : yenange /// Date : 2014-02-26 /// Description : 邮件发送辅助类 /// </summary> public class EmailHelper { #region [ 属性(发送Email相关) ] private string _SmtpHost = string.Empty; private int _SmtpPort = -1; private string _FromEmailAddress = string.Empty; private string _FormEmailPassword = string.Empty; /// <summary> /// smtp 服务器 /// </summary> public string SmtpHost { get { if (string.IsNullOrEmpty(_SmtpHost)) { _SmtpHost = ConfigurationManager.AppSettings["SmtpHost"]; } return _SmtpHost; } } /// <summary> /// smtp 服务器端口 默认为25 /// </summary> public int SmtpPort { get { if (_SmtpPort == -1) { if (!int.TryParse(ConfigurationManager.AppSettings["SmtpPort"], out _SmtpPort)) { _SmtpPort = 25; } } return _SmtpPort; } } /// <summary> /// 发送者 Eamil 地址 /// </summary> public string FromEmailAddress { get { if (string.IsNullOrEmpty(_FromEmailAddress)) { _FromEmailAddress = ConfigurationManager.AppSettings["FromEmailAddress"]; } return _FromEmailAddress; } } /// <summary> /// 发送者 Eamil 密码 /// </summary> public string FormEmailPassword { get { if (string.IsNullOrEmpty(_FormEmailPassword)) { _FormEmailPassword = ConfigurationManager.AppSettings["FormEmailPassword"]; } return _FormEmailPassword; } } #endregion #region [ 属性(邮件相关) ] /// <summary> /// 收件人 Email 列表，多个邮件地址之间用 半角逗号 分开 /// </summary> public string ToList { get; set; } /// <summary> /// 邮件的抄送者，支持群发，多个邮件地址之间用 半角逗号 分开 /// </summary> public string CCList { get; set; } /// <summary> /// 邮件的密送者，支持群发，多个邮件地址之间用 半角逗号 分开 /// </summary> public string BccList { get; set; } /// <summary> /// 邮件标题 /// </summary> public string Subject { get; set; } /// <summary> /// 邮件正文 /// </summary> public string Body { get; set; } private bool _IsBodyHtml = true; /// <summary> /// 邮件正文是否为Html格式 /// </summary> public bool IsBodyHtml { get { return _IsBodyHtml; } set { _IsBodyHtml = value; } } /// <summary> /// 附件列表 /// </summary> public List<Attachment> AttachmentList { get; set; } #endregion #region [ 构造函数 ] /// <summary> /// 构造函数 (body默认为html格式) /// </summary> /// <param name="toList">收件人列表</param> /// <param name="subject">邮件标题</param> /// <param name="body">邮件正文</param> public EmailHelper(string toList, string subject, string body) { this.ToList = toList; this.Subject = subject; this.Body = body; } /// <summary> /// 构造函数 /// </summary> /// <param name="toList">收件人列表</param> /// <param name="subject">邮件标题</param> /// <param name="isBodyHtml">邮件正文是否为Html格式</param> /// <param name="body">邮件正文</param> public EmailHelper(string toList, string subject, bool isBodyHtml, string body) { this.ToList = toList; this.Subject = subject; this.IsBodyHtml = isBodyHtml; this.Body = body; } /// <summary> /// 构造函数 /// </summary> /// <param name="toList">收件人列表</param> /// <param name="ccList">抄送人列表</param> /// <param name="bccList">密送人列表</param> /// <param name="subject">邮件标题</param> /// <param name="isBodyHtml">邮件正文是否为Html格式</param> /// <param name="body">邮件正文</param> public EmailHelper(string toList, string ccList, string bccList, string subject, bool isBodyHtml, string body) { this.ToList = toList; this.CCList = ccList; this.BccList = bccList; this.Subject = subject; this.IsBodyHtml = isBodyHtml; this.Body = body; } /// <summary> /// 构造函数 /// </summary> /// <param name="toList">收件人列表</param> /// <param name="ccList">抄送人列表</param> /// <param name="bccList">密送人列表</param> /// <param name="subject">邮件标题</param> /// <param name="isBodyHtml">邮件正文是否为Html格式</param> /// <param name="body">邮件正文</param> /// <param name="attachmentList">附件列表</param> public EmailHelper(string toList, string ccList, string bccList, string subject, bool isBodyHtml, string body, List<Attachment> attachmentList) { this.ToList = toList; this.CCList = ccList; this.BccList = bccList; this.Subject = subject; this.IsBodyHtml = isBodyHtml; this.Body = body; this.AttachmentList = attachmentList; } #endregion #region [ 发送邮件 ] /// <summary> /// 发送邮件 /// </summary> /// <returns></returns> public void Send() { SmtpClient smtp = new SmtpClient(); //实例化一个SmtpClient smtp.DeliveryMethod = SmtpDeliveryMethod.Network; //将smtp的出站方式设为 Network smtp.EnableSsl = false; //smtp服务器是否启用SSL加密 smtp.Host = this.SmtpHost; //指定 smtp 服务器地址 smtp.Port = this.SmtpPort; //指定 smtp 服务器的端口，默认是25，如果采用默认端口，可省去 smtp.UseDefaultCredentials = true; //如果你的SMTP服务器不需要身份认证，则使用下面的方式，不过，目前基本没有不需要认证的了 smtp.Credentials = new NetworkCredential(this.FromEmailAddress, this.FormEmailPassword); //如果需要认证，则用下面的方式 MailMessage mm = new MailMessage(); //实例化一个邮件类 mm.Priority = MailPriority.Normal; //邮件的优先级，分为 Low, Normal, High，通常用 Normal即可 mm.From = new MailAddress(this.FromEmailAddress, "管理员", Encoding.GetEncoding(936)); //收件人 if (!string.IsNullOrEmpty(this.ToList)) mm.To.Add(this.ToList); //抄送人 if (!string.IsNullOrEmpty(this.CCList)) mm.CC.Add(this.CCList); //密送人 if (!string.IsNullOrEmpty(this.BccList)) mm.Bcc.Add(this.BccList); mm.Subject = this.Subject; //邮件标题 mm.SubjectEncoding = Encoding.GetEncoding(936); //这里非常重要，如果你的邮件标题包含中文，这里一定要指定，否则对方收到的极有可能是乱码。 mm.IsBodyHtml = this.IsBodyHtml; //邮件正文是否是HTML格式 mm.BodyEncoding = Encoding.GetEncoding(936); //邮件正文的编码， 设置不正确， 接收者会收到乱码 mm.Body = this.Body; //邮件正文 //邮件附件 if (this.AttachmentList != null && this.AttachmentList.Count > 0) { foreach (Attachment attachment in this.AttachmentList) { mm.Attachments.Add(attachment); } } //发送邮件，如果不返回异常， 则大功告成了。 smtp.Send(mm); } #endregion } }
3.测试代码
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net; using System.Net.Mail; using System.Configuration; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { try { EmailHelper email = new EmailHelper("xxx@qq.com,xxx@qq.com", "测试邮件2", "<html><body><div style='color:red;'>测试内容</div></body></html>"); email.Send(); Console.WriteLine("发送成功！"); } catch (Exception ex) { Console.WriteLine("发送失败！失败原因："); Console.WriteLine(ex.Message); } Console.Read(); } }//end of class Program }//end of namespace