C# 简单邮件群发通用类

  1 public static class Email
  2     {
  3         /// <summary>
  4         /// 发件人
  5         /// </summary>
  6         public static string mailFrom { get; set; }
  7 
  8         /// <summary>
  9         /// 收件人
 10         /// </summary>
 11         public static string[] mailToArray { get; set; }
 12 
 13         /// <summary>
 14         /// 抄送
 15         /// </summary>
 16         public static string[] mailCcArray { get; set; }
 17 
 18         /// <summary>
 19         /// 标题
 20         /// </summary>
 21         public static string mailSubject { get; set; }
 22 
 23         /// <summary>
 24         /// 正文
 25         /// </summary>
 26         public static string mailBody { get; set; }
 27 
 28         /// <summary>
 29         /// 发件人密码
 30         /// </summary>
 31         public static string mailPwd { get; set; }
 32 
 33         /// <summary>
 34         /// SMTP邮件服务器
 35         /// </summary>
 36         public static string host { get; set; }   
 37 
 38         /// <summary>
 39         /// 邮件服务器端口
 40         /// </summary>
 41         public static int port { get; set; }
 42 
 43         /// <summary>
 44         /// 正文是否是html格式
 45         /// </summary>
 46         public static bool isbodyHtml { get; set; }
 47 
 48         /// <summary>
 49         /// 附件
 50         /// </summary>
 51         public static string[] attachmentsPath { get; set; }
 52 
 53         public static bool Send()
 54         {
 55             //使用指定的邮件地址初始化MailAddress实例
 56             MailAddress maddr = new MailAddress(mailFrom);
 57 
 58             //初始化MailMessage实例
 59             MailMessage myMail = new MailMessage();
 60 
 61             //向收件人地址集合添加邮件地址
 62             if (mailToArray != null)
 63             {
 64                 for (int i = 0; i < mailToArray.Length; i++)
 65                 {
 66                     myMail.To.Add(mailToArray[i].ToString());
 67                 }
 68             }
 69 
 70             //向抄送收件人地址集合添加邮件地址
 71             if (mailCcArray != null)
 72             {
 73                 for (int i = 0; i < mailCcArray.Length; i++)
 74                 {
 75                     myMail.CC.Add(mailCcArray[i].ToString());
 76                 }
 77             }
 78             //发件人地址
 79             myMail.From = maddr;
 80 
 81             //电子邮件的标题
 82             myMail.Subject = mailSubject;
 83 
 84             //电子邮件的主题内容使用的编码
 85             myMail.SubjectEncoding = Encoding.UTF8;
 86 
 87             //电子邮件正文
 88             myMail.Body = mailBody;
 89 
 90             //电子邮件正文的编码
 91             myMail.BodyEncoding = Encoding.Default;
 92 
 93             //电子邮件优先级
 94             myMail.Priority = MailPriority.High;
 95 
 96             //电子邮件不是html格式
 97             myMail.IsBodyHtml = isbodyHtml;
 98 
 99             //在有附件的情况下添加附件
100             try
101             {
102                 if (attachmentsPath != null && attachmentsPath.Length > 0)
103                 {
104                     Attachment attachFile = null;
105                     foreach (string path in attachmentsPath)
106                     {
107                         attachFile = new Attachment(path);
108                         myMail.Attachments.Add(attachFile);
109                     }
110                 }
111             }
112             catch (Exception err)
113             {
114                 throw new Exception("在添加附件时有错误:" + err.Message);
115             }
116 
117             SmtpClient client = new SmtpClient();
118 
119             //指定发件人的邮件地址和密码以验证发件人身份
120             client.Credentials = new NetworkCredential(mailFrom, mailPwd);
121 
122             //设置SMTP邮件服务器
123             //client.Host = "smtp." + myMail.From.Host;
124             client.Host = host;
125 
126             //SMTP邮件服务器端口
127             client.Port = port;
128 
129             //是否使用安全连接
130             //client.EnableSsl = true;
131 
132             try
133             {
134                 //将邮件发送到SMTP邮件服务器
135                 client.Send(myMail);
136                 return true;
137             }
138             catch (SmtpException ex)
139             {
140                 string msg = ex.Message;
141                 return false;
142             }
143 
144         }