邮件客户端开发

.Net自带封装的Mail接口（System.Net.Mail）

方法实现

 1  static readonly string cc = ConfigurationManager.AppSettings["cc"];
 2         //app.config使用如下注释的代买读取配置，web.config使用6行代码读取配置
 3         //static Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
 4         //static SmtpSection smtp = NetSectionGroup.GetSectionGroup(config).MailSettings.Smtp;
 5 
 6         static readonly SmtpSection smtp = NetSectionGroup.GetSectionGroup(WebConfigurationManager.OpenWebConfiguration("~/web.config")).MailSettings.Smtp;
 7 
 8 
 9         /// <summary>
10         /// 发送邮件
11         /// </summary>
12         /// <param name="message">邮件内容</param>
13         public static void PublishTo(MailEntity message)
14         {
15             try
16             {
17                 string userAddress = message.ToAddress;
18                 string userName = message.ToName;
19                 string subject = message.Subject;
20                 string body = message.Body;
21                 Encoding encoding = Encoding.UTF8;
22                 bool isBodyHtml = true;
23                 var fromAddress = new MailAddress(smtp.Network.UserName, message.FromName); //含有发送人的发送地址
24                 var toAddress = new MailAddress(userAddress, userName); //含有收件人的接收地址
25                 var email = new MailMessage(fromAddress, toAddress)
26                 {
27                     IsBodyHtml = isBodyHtml,
28                     Subject = subject,
29                     Body = body,
30                     BodyEncoding = encoding,
31                 };
32                 string copys = cc;
33                 if (!string.IsNullOrEmpty(message.CC))
34                 {
35                     //如果传入cc则不读配置cc
36                     copys = message.CC;
37                 }
38                 if (!string.IsNullOrEmpty(copys))
39                 {
40                     if (copys.IndexOf(';') == -1)
41                     {
42                         email.CC.Add(copys);
43                     }
44                     else
45                     {
46                         string[] ccs = cc.Split(';');
47                         foreach (var s in ccs)
48                         {
49                             MailAddress copy = new MailAddress(s);
50                             email.CC.Add(copy);
51                         }
52                     }
53                 }              
54                 //发送附件
55                 if (!string.IsNullOrEmpty(message.Attachment) && !string.IsNullOrEmpty(message.AttachmentName))
56                 {
57                     Stream  fileStream = File.OpenRead(message.Attachment);
58                     ContentType ct = new ContentType(MediaTypeNames.Text.Plain);
59                     Attachment attachment = new Attachment(fileStream, ct);
60                     ContentDisposition disposition = attachment.ContentDisposition;
61                     //文件名不支持中文。如果是disposition.FileName为中文名则发生失败
62                     disposition.FileName = message.AttachmentName;                   
63                     email.Attachments.Clear();            
64                     email.Attachments.Add(attachment);
65                 }
66                 //邮件附件以流的方式写入
67                 //email.Attachments.Add(new Attachment());//不支持uri
68 
69                 PublicTo(email);
70                
71             }
72             catch (Exception e)
73             {
74                 //增加日记
75             }
76         }
77 
78         static void PublicTo(MailMessage mail)
79         {
80             var client = new SmtpClient
81             {
82                 Host = smtp.Network.Host,
83                 Credentials = new NetworkCredential(smtp.Network.UserName, smtp.Network.Password),
84                 Port = smtp.Network.Port,
85             };
86  
87             //开始发送
88             client.Send(mail);
89             client.Dispose();
90         }

配置文件

1     <mailSettings>
2       <smtp deliveryMethod="Network">
3         <network host="mail.5173.com" port="25" userName="archProjectMain@5173.com" password="eue72dsh" />
4       </smtp>
5     </mailSettings>

邮件实体

    /// <summary>
    /// 邮件实体
    /// </summary>
    [Serializable]
    public class MailEntity
    {
        /// <summary>
        /// 邮件唯一标识，用于备份数据库，便于查找
        /// </summary>
        public string MailId
        {
            get { return DateTime.Now.ToString("yyyyMMdd-HHmmss"); }
        }

        /// <summary>
        /// 发送人名
        /// </summary>
        public string FromName { get; set; }

        /// <summary>
        /// 收件人名
        /// </summary>
        public string ToName { get; set; }

        /// <summary>
        /// 收件人地址
        /// </summary>
        public string ToAddress { get; set; }

        /// <summary>
        /// 标题
        /// </summary>
        public string Subject { get; set; }

        /// <summary>
        /// 内容
        /// </summary>
        [MongoIgnore]
        public string Body { get; set; }

        /// <summary>
        /// 抄送 抄送人以;隔离 
        /// </summary>
        public string CC { get; set; }

        /// <summary>
        /// 邮件附件
        /// </summary>
        public string Attachment { get; set; }

        /// <summary>
        /// 邮件附件名称，不能有中文，否则发送会失败
        /// </summary>
        public string AttachmentName { get; set; }
    }

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