1.前言
a.在软件开发中，我们经常能够遇到给用户或者客户推送邮件，推送邮件也分为很多方式，比如：推送一句话，推送一个网页等等。那么在系统开发中我们一般在什么情况下会使用邮件发送呢？下面我简单总结了一下：总结不全，纯属于整理封装的类。
(1):用户注册(推送邮件，提示用户注册成功，牢记用户名密码)
(2):修改密码(推送邮件，提示用户密码修改成功)
(3):下订单(推送邮件，提示用户订单已下)
(4):物流跟踪(推送邮件，跟踪物流信息)
(5):广告推送(推送广告，提示用户近来公司近况或者新的商品，产品)
(6):日志监控系统推送(推送错误信息，提供给程序员使用)
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b.上面我们说了邮件推送的使用，那么既然邮件推送这么频繁，就需要整理出来一个公用类来给大家使用，下面我就简单整理了一下公用类，如果大家需要，请git上下载或者复制即可，不能保证百分百实现你的功能，如果不能实现你的功能，请改进。
c.git下载地址：https://github.com/kencery/Common/tree/master/KenceryCommonMethod/Smtp%E9%82%AE%E4%BB%B6%E5%8F%91%E9%80%81
d.代码整理如下，请您查看.......
2.代码整理
a.C#代码以及如何调用等都在代码中已注释，如不会使用，请仔细查看
1 // 源文件头信息： 2 // <copyright file="Email.cs,EmailHelp.cs"> 3 // Copyright(c)2014-2034 Kencery.All rights reserved. 4 // 个人博客：http://www.cnblogs.com/hanyinglong 5 // 创建人：韩迎龙(kencery) 6 // 创建时间：2015-8-18 7 // </copyright> 8 9 using System; 10 using System.Net; 11 using System.Net.Mail; 12 using System.Text; 13 14 namespace KenceryCommonMethod 15 { 16 /// <summary> 17 /// 功能：实现邮件发送,分装发送邮件的调用方法 18 /// </summary> 19 /// <auther> 20 /// <name>Kencery</name> 21 /// <date>2015-8-18</date> 22 /// </auther> 23 public class Email 24 { 25 #region --------------------字段-------------------- 26 27 private string _serviceType = "SMTP"; 28 private string _host; 29 30 #endregion 31 32 #region --------------------属性-------------------- 33 34 /// <summary> 35 /// 发送者邮箱 36 /// </summary> 37 public string From { get; set; } 38 39 /// <summary> 40 /// 接收者邮箱列表 41 /// </summary> 42 public string[] To { get; set; } 43 44 /// <summary> 45 /// 抄送者邮箱列表 46 /// </summary> 47 public string[] Cc { get; set; } 48 49 /// <summary> 50 /// 秘抄者邮箱列表 51 /// </summary> 52 public string[] Bcc { get; set; } 53 54 /// <summary> 55 /// 邮件主题 56 /// </summary> 57 public string Subject { get; set; } 58 59 /// <summary> 60 /// 邮件内容 61 /// </summary> 62 public string Body { get; set; } 63 64 /// <summary> 65 /// 是否是HTML格式 66 /// </summary> 67 public bool IsBodyHtml { get; set; } 68 69 /// <summary> 70 /// 附件列表 71 /// </summary> 72 public string[] Attachments { get; set; } 73 74 /// <summary> 75 /// 邮箱服务类型(Pop3,SMTP,IMAP,MAIL等)，默认为SMTP 76 /// </summary> 77 public string ServiceType 78 { 79 get { return _serviceType; } 80 set { _serviceType = value; } 81 } 82 83 /// <summary> 84 /// 邮箱服务器，如果没有定义邮箱服务器，则根据serviceType和Sender组成邮箱服务器 85 /// </summary> 86 public string Host 87 { 88 get 89 { 90 return string.IsNullOrEmpty(_host) 91 ? (this.ServiceType + "." + 92 Sender.Split("@".ToCharArray(), StringSplitOptions.RemoveEmptyEntries)[1]) 93 : _host; 94 } 95 set { _host = value; } 96 } 97 98 /// <summary> 99 /// 邮箱账号(默认为发送者邮箱的账号)100 /// </summary>101 public string UserName { get; set; }102 103 /// <summary>104 /// 邮箱密码(默认为发送者邮箱的密码)，默认格式GB2312105 /// </summary>106 public string Password { get; set; }107 108 /// <summary>109 /// 邮箱优先级110 /// </summary>111 public MailPriority MailPriority { get; set; }112 113 /// <summary>114 /// 邮件正文编码格式115 /// </summary>116 public Encoding Encoding { get; set; }117 118 #endregion119 120 #region ------------------调用方法------------------121 122 /// <summary>123 /// 构造参数，发送邮件，使用方法备注：公开方法中调用124 /// </summary>125 public void Send()126 {127 var mailMessage = new MailMessage();128 129 //读取To 接收者邮箱列表130 if (this.To != null && this.To.Length > 0)131 {132 foreach (string to in this.To)133 {134 if (string.IsNullOrEmpty(to)) continue;135 try136 {137 mailMessage.To.Add(new MailAddress(to.Trim()));138 }139 catch (Exception ex)140 {141 throw new Exception(ex.Message);142 }143 }144 }145 //读取Cc 抄送者邮件地址146 if (this.Cc != null && this.Cc.Length > 0)147 {148 foreach (var cc in this.Cc)149 {150 if (string.IsNullOrEmpty(cc)) continue;151 try152 {153 mailMessage.CC.Add(new MailAddress(cc.Trim()));154 }155 catch (Exception ex)156 {157 throw new Exception(ex.Message);158 }159 }160 }161 //读取Attachments 邮件附件162 if (this.Attachments != null && this.Attachments.Length > 0)163 {164 foreach (var attachment in this.Attachments)165 {166 if (string.IsNullOrEmpty(attachment)) continue;167 try168 {169 mailMessage.Attachments.Add(new Attachment(attachment));170 }171 catch (Exception ex)172 {173 throw new Exception(ex.Message);174 }175 }176 }177 //读取Bcc 秘抄人地址178 if (this.Bcc != null && this.Bcc.Length > 0)179 {180 foreach (var bcc in this.Bcc)181 {182 if (string.IsNullOrEmpty(bcc)) continue;183 try184 {185 mailMessage.Bcc.Add(new MailAddress(bcc.Trim()));186 }187 catch (Exception ex)188 {189 throw new Exception(ex.Message);190 }191 }192 }193 //读取From 发送人地址194 try195 {196 mailMessage.From = new MailAddress(this.From);197 }198 catch (Exception ex)199 {200 throw new Exception(ex.Message);201 }202 203 //邮件标题204 Encoding encoding = Encoding.GetEncoding("GB2312");205 mailMessage.Subject = string.Format("?={0}?B?{1}?=", encoding.HeaderName,206 Convert.ToBase64String(encoding.GetBytes(this.Subject), Base64FormattingOptions.None));207 //邮件正文是否为HTML格式208 mailMessage.IsBodyHtml = this.IsBodyHtml;209 //邮件正文210 mailMessage.Body = this.Body;211 mailMessage.BodyEncoding = this.Encoding;212 //邮件优先级213 mailMessage.Priority = this.MailPriority;214 215 //发送邮件代码实现216 var smtpClient = new SmtpClient217 {218 Host = this.Host,219 Credentials = new NetworkCredential(this.UserName, this.Password)220 };221 //认证222 try223 {224 smtpClient.Send(mailMessage);225 }226 catch (Exception ex)227 {228 throw new Exception(ex.Message);229 }230 }231 232 #endregion233 }234 235 /// <summary>236 ///邮件发送接口调用：bool isTrue=EmailInfo.SendEmail(参数,........); 参数解释参考方法237 /// <auther>238 /// <name>Kencery</name>239 /// <date>2015-8-18</date>240 /// </auther>241 /// </summary>242 public static class EmailInfo243 {244 /// <summary>245 /// 邮件发送方法，传递参数(使用中如出现问题，请调试)246 /// </summary>247 /// <param name="from">发送者邮箱名称(从配置文件中读取，比如：[email protected])(必填项)</param>248 /// <param name="to">接收者邮箱列表，可以传递多个，使用string[]表示(从配置文件中读取)(必填项)</param>249 /// <param name="cc">抄送者邮箱列表，可以传递多个，使用string[]表示(从配置文件中读取)</param>250 /// <param name="bcc">秘抄者邮箱列表，可以传递多个，使用string[]表示(从配置文件中读取)</param>251 /// <param name="subject">邮件主题，构造(必填项)</param>252 /// <param name="body">邮件内容，构造发送的邮件内容，可以发送网页(必填项)</param>253 /// <param name="isBodyHtml">是否是HTML格式，true为是，false为否</param>254 /// <param name="attachments">邮箱附件，可以传递多个，使用string[]表示(从配置文件中读取)，可空</param>255 /// <param name="host">邮箱服务器(从配置文件中读取，如：[email protected])(必填项)</param>256 /// <param name="password">邮箱密码(从配置文件中读取，from邮箱的密码)(必填项)</param>257 /// <returns>邮件发送成功，返回true,否则返回false</returns>258 public static bool SendEmail(string from, string[] to, string[] cc, string[] bcc, string subject, string body,259 bool isBodyHtml, string[] attachments, string host, string password)260 {261 //邮箱发送不满足，限制这些参数必须传递262 if (from == "" || to.Length <= 0 || subject == "" || body == "" || host == "" || password == "")263 {264 return false;265 }266 267 var emil = new Email268 {269 From = @from,270 To = to,271 Cc = cc,272 Bcc = bcc,273 Subject = subject,274 Body = body,275 IsBodyHtml = isBodyHtml,276 Attachments = attachments,277 Host = host,278 Password = password279 };280 try281 {282 emil.Send();283 return true;284 }285 catch (Exception ex)286 {287 throw new Exception(ex.Message);288 }289 }290 }291 }