C#一个完整的电子邮件操作类

  1     /// <summary>
  2 /// 电子邮件操作类。
  3 /// </summary>
  4     public class Mail
  5     {
  6         /// <summary>
  7 /// 初始化一个电子邮件操作类的空实例。
  8 /// </summary>
  9         public Mail()
 10         {
 11         }
 12         /// <summary>
 13 /// 初始化一个电子邮件操作类的实例。
 14 /// </summary>
 15 /// <param name="from">发件人的电子邮件地址。</param>
 16 /// <param name="fromName">发件人的姓名。</param>
 17 /// <param name="recipient">收件人的电子邮件地址。</param>
 18 /// <param name="recipientName">收件人的姓名。</param>
 19 /// <param name="subject">电子邮件的主题。</param>
 20 /// <param name="body">电子邮件的内容。</param>
 21 /// <param name="host">电子邮件的服务器地址。</param>
 22 /// <param name="port">电子邮件的主机端口号。</param>
 23 /// <param name="username">登录电子邮件服务器的用户名。</param>
 24 /// <param name="password">登录电子邮件服务器的用户密码。</param>
 25 /// <param name="isBodyHtml">邮件的正文是否是HTML格式。</param>
 26 /// <param name="file">邮件附件的文件路径。</param>
 27         public Mail(string from, string fromName, string recipient, string recipientName, string subject, string body, string host, int port, string username, string password, bool isBodyHtml, string filepath)
 28         {
 29             this._from = from;
 30             this._fromName = fromName;
 31             this._recipient = recipient;
 32             this._recipientName = recipientName;
 33             this._subject = subject;
 34             this._body = body;
 35             this._serverHost = host;
 36             this._serverPort = port;
 37             this._username = username;
 38             this._password = password;
 39             this._isBodyHtml = isBodyHtml;
 40             this._attachment.Add(filepath);
 41         }
 42         /// <summary>
 43 /// 初始化一个电子邮件操作类的实例。
 44 /// </summary>
 45 /// <param name="from">发件人的电子邮件地址。</param>
 46 /// <param name="fromName">发件人的姓名。</param>
 47 /// <param name="recipient">收件人的电子邮件地址。</param>
 48 /// <param name="recipientName">收件人的姓名。</param>
 49 /// <param name="subject">电子邮件的主题。</param>
 50 /// <param name="body">电子邮件的内容。</param>
 51 /// <param name="host">电子邮件的服务器地址。</param>
 52 /// <param name="port">电子邮件的主机端口号。</param>
 53 /// <param name="username">登录电子邮件服务器的用户名。</param>
 54 /// <param name="password">登录电子邮件服务器的用户密码。</param>
 55 /// <param name="isBodyHtml">邮件的正文是否是HTML格式。</param>
 56         public Mail(string from, string fromName, string recipient, string recipientName, string subject, string body, string host, int port, string username, string password, bool isBodyHtml)
 57             : this(from, fromName, recipient, recipientName, subject, body, host, 25, username, password, isBodyHtml, null)
 58         {
 59         }
 60 
 61         /// <summary>
 62 /// 初始化一个电子邮件操作类的实例。
 63 /// </summary>
 64 /// <param name="from">发件人的电子邮件地址。</param>
 65 /// <param name="fromName">发件人的姓名。</param>
 66 /// <param name="recipient">收件人的电子邮件地址。</param>
 67 /// <param name="recipientName">收件人的姓名。</param>
 68 /// <param name="subject">电子邮件的主题。</param>
 69 /// <param name="body">电子邮件的内容。</param>
 70 /// <param name="host">电子邮件的服务器地址。</param>
 71 /// <param name="port">电子邮件的主机端口号。</param>
 72 /// <param name="username">登录电子邮件服务器的用户名。</param>
 73 /// <param name="password">登录电子邮件服务器的用户密码。</param>
 74 /// <param name="isBodyHtml">邮件的正文是否是HTML格式。</param>
 75         public Mail(string from, string fromName, string recipient, string recipientName, string subject, string body, string host,  string username, string password)
 76             : this(from, fromName, recipient, recipientName, subject, body, host, 25, username, password, false, null)
 77         {
 78         }
 79         /// <summary>
 80 /// 初始化一个电子邮件操作类的实例（邮件的正文非HTML格式，端口默认25）。
 81 /// </summary>
 82 /// <param name="from">发件人的电子邮件地址。</param>
 83 /// <param name="recipient">收件人的电子邮件地址。</param>
 84 /// <param name="subject">电子邮件的主题。</param>
 85 /// <param name="body">电子邮件的内容。</param>
 86 /// <param name="host">电子邮件的服务器地址。</param>
 87 /// <param name="username">登录电子邮件服务器的用户名。</param>
 88 /// <param name="password">登录电子邮件服务器的用户密码。</param>
 89 /// <param name="isBodyHtml">邮件的正文是否是HTML格式。</param>
 90         public Mail(string from, string recipient,  string subject, string body, string host, string username, string password)
 91             : this(from, null, recipient, null, subject, body, host, 25, username, password, false, null)
 92         {
 93         }
 94         /// <summary>
 95 /// 初始化一个电子邮件操作类的实例（邮件的正文非HTML格式，端口默认25）。
 96 /// </summary>
 97 /// <param name="from">发件人的电子邮件地址。</param>
 98 /// <param name="recipient">收件人的电子邮件地址。</param>
 99 /// <param name="subject">电子邮件的主题。</param>
100 /// <param name="body">电子邮件的内容。</param>
101 /// <param name="port">电子邮件的主机端口号。</param>
102 /// <param name="host">电子邮件的服务器地址。</param>
103 /// <param name="username">登录电子邮件服务器的用户名。</param>
104 /// <param name="password">登录电子邮件服务器的用户密码。</param>
105         public Mail(string from, string recipient, string subject, string body, string host, int port, string username, string password)
106             : this(from, null, recipient, null, subject, body, host, port, username, password, false, null)
107         {
108         }
109 
110         private string _subject;
111         private string _body;
112         private string _from;
113         private string _fromName;
114         private string _recipientName;
115         private string _serverHost;
116         private int _serverPort;
117         private string _username;
118         private string _password;
119         private bool _isBodyHtml;
120         private string _recipient;
121         private List<string> _attachment = new List<string> { };
122 
123         /// <summary>
124 /// 获取或设置邮件的主题。
125 /// </summary>
126         public string Subject
127         {
128             get { return this._subject; }
129             set { this._subject = value; }
130         }
131 
132         /// <summary>
133 /// 获取或设置邮件的正文内容。
134 /// </summary>
135         public string Body
136         {
137             get { return this._body; }
138             set { this._body = value; }
139         }
140 
141         /// <summary>
142 /// 获取或设置发件人的邮件地址。
143 /// </summary>
144         public string From
145         {
146             get { return this._from; }
147             set { this._from = value; }
148         }
149 
150         /// <summary>
151 /// 获取或设置发件人的姓名。
152 /// </summary>
153         public string FromName
154         {
155             get { return this._fromName; }
156             set { this._fromName = value; }
157         }
158 
159         /// <summary>
160 /// 获取或设置收件人的姓名。
161 /// </summary>
162         public string RecipientName
163         {
164             get { return this._recipientName; }
165             set { this._recipientName = value; }
166         }
167 
168         /// <summary>
169 /// 获取或设置收件人的邮件地址。
170 /// </summary>
171         public string Recipient
172         {
173             get { return this._recipient; }
174             set { this._recipient = value; }
175         }
176 
177         /// <summary>
178 /// 获取或设置邮件服务器主机地址。
179 /// </summary>
180         public string ServerHost
181         {
182             get { return this._serverHost; }
183             set { this._serverHost = value; }
184         }
185 
186         /// <summary>
187 /// 获取或设置邮件服务器的端口号。
188 /// </summary>
189         public int ServerPort
190         {
191             set { this._serverPort = value; }
192             get { return this._serverPort; }
193         }
194 
195 
196         /// <summary>
197 /// 获取或设置SMTP认证时使用的用户名。
198 /// </summary>
199         public string Username
200         {
201             get { return this._username; }
202             set
203             {
204                 if (value.Trim() != "")
205                 {
206                     this._username = value.Trim();
207                 }
208                 else
209                 {
210                     this._username = "";
211                 }
212             }
213         }
214 
215         /// <summary>
216 /// 获取或设置SMTP认证时使用的密码。
217 /// </summary>
218         public string Password
219         {
220             set { this._password = value; }
221             get { return this._password; }
222         }
223 
224         /// <summary>
225 /// 获取或设置指示邮件正文是否为 Html 格式的值。
226 /// </summary>
227         public bool IsBodyHtml
228         {
229             get { return this._isBodyHtml; }
230             set { this._isBodyHtml = value; }
231         }
232 
233         /// <summary>
234 /// 获取电子邮件附件。
235 /// </summary>
236         public List<string> Attachment
237         {
238             get { return this._attachment; }
239             set { this._attachment = value; }
240         }
241 
242         ///// <summary>
243 ///// 添加一个收件人的邮箱地址。
244 ///// </summary>
245 ///// <param name="mailList">联系人列表。</param>
246 ///// <returns></returns>
247         //public bool AddRecipient(params string[] mailList)
248 //{
249 //    this.Recipient = mailList[0].Trim();
250 //    return true;
251 //}
252 
253         /// <summary>
254 /// 添加电子邮件附件。
255 /// </summary>
256 /// <param name="fileList">文件列表。</param>
257 /// <returns>是否添加成功。</returns>
258         public bool AddAttachment(params string[] fileList)
259         {
260             if (fileList.Length > 0)
261             {
262                 foreach (string file in fileList)
263                 {
264                     if (file != null)
265                     {
266                         this._attachment.Add(file);
267                     }
268                     else
269                     {
270                         return false;
271                     }
272                 }
273                 return true;
274             }
275             else
276             {
277                 return false;
278             }
279         }
280         /// <summary>
281 /// 发送电子邮件。
282 /// </summary>
283 /// <returns>是否发送成功。</returns>
284         public bool Send()
285         {
286             //初始化 MailMessage 对象。
287             MailMessage mail = new MailMessage();
288             Encoding encoding = Encoding.GetEncoding("utf-8");
289             mail.From = new MailAddress(this.From, this.FromName, encoding);
290             mail.To.Add(new MailAddress(this.Recipient, this.RecipientName));
291             mail.Subject = this.Subject;
292             mail.IsBodyHtml = this.IsBodyHtml;
293             mail.Body = this.Body;
294             mail.Priority = MailPriority.Normal;
295             mail.BodyEncoding = encoding;
296             if (this.Attachment.Count > 0)
297             {
298                 foreach (string file in this.Attachment)
299                 {
300                     mail.Attachments.Add(new Attachment(file));
301                 }
302             }
303             //初始化 SmtpClient 对象。
304             SmtpClient smtp = new SmtpClient();
305             smtp.Host = this.ServerHost;
306             smtp.Port = this.ServerPort;
307             smtp.Credentials = new NetworkCredential(this.Username, this.Password);
308             if (smtp.Port != 25)
309             {
310                 smtp.EnableSsl = true;
311             }
312             try
313             {
314                 smtp.Send(mail);
315             }
316             catch (SmtpException ex)
317             {
318                 string message = ex.Message;
319                 return false;
320             }
321             return true;
322         }
323     }