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="[email protected]" 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; }

    }