在C#中通过SMTP服务器发送邮件，几个常用的函数
/*=============================================================
* Send Mail Helper
* Author ： Danny,Li
* E-mail ： xing.dong.li@163.com
* Edition： V-101014
*=============================================================*/
using System;
using System.Collections.Generic;
using System.Text;
namespace IRCommon
{
public class MailHelper
{
#region 从web.config中取得发送邮件参数
//SMTP服务器
public static string MailSmtpServer
{
get { return System.Configuration.ConfigurationManager.AppSettings["mailSmtpServer"]; }
}
//系统发件地址
public static string MailServerFrom
{
get { return System.Configuration.ConfigurationManager.AppSettings["MailServerFrom"]; }
}
//系统调试时收件地址
public static string DebugMail
{
get
{
if (string.IsNullOrEmpty(System.Configuration.ConfigurationManager.AppSettings["debugMail"]))
return string.Empty;
else
return System.Configuration.ConfigurationManager.AppSettings["debugMail"];
}
}
#endregion
/// <summary>
/// 私有构造方法，不允许创建实例
/// </summary>
private MailHelper()
{
// TODO: Add constructor logic here
}
/// <summary>
/// SendNetMail(须配置SMTP服务器地址)(多个收件人、抄送人、附件其参数用";"隔开,最后一个不能有";")
/// </summary>
/// <param name="mailFrom">发件人</param>
/// <param name="mailTo">收件人(多个收件人用"；"隔开，最后一个不能有"；")</param>
/// <param name="mailSubject">主题</param>
/// <param name="mailBody">内容</param>
/// <param name="mailAttch">附件（多个附件用"；"隔开，最后一个不能有"；"）</param>
/// <param name="mailCode">密码（对加密过的）</param>
/// <param name="mailPriority">优先级</param>
/// <param name="mailCC">抄送(多个抄送人用"；"隔开，最后一个不能有"；")</param>
/// <param name="resultMessage">输出信息</param>
public static void SendNetMail(string mailFrom, string mailTo, string mailSubject, string mailBody, string mailAttch, string mailCode, string mailPriority, string mailCC, out string resultMessage)
{
//初始化输出参数
resultMessage = "";
//发件人和收件人不为空
if (string.IsNullOrEmpty(mailFrom) || string.IsNullOrEmpty(mailTo))
{
resultMessage = "Please Fill Email Addresser Or Addressee . ";
return;
}
System.Net.Mail.MailMessage email = new System.Net.Mail.MailMessage();
System.Net.Mail.MailAddress emailFrom = new System.Net.Mail.MailAddress(mailFrom);
//发件人
email.From = emailFrom;
//收件人
if (string.IsNullOrEmpty(DebugMail))
{
string[] toUsers = mailTo.Split(';');
foreach (string to in toUsers)
email.To.Add(to);
}
else
{
email.To.Add(DebugMail);
mailSubject += "(MailTo " + mailTo + ")";
}
//抄送
if (string.IsNullOrEmpty(DebugMail))
{
if (!string.IsNullOrEmpty(mailCC))
{
string[] ccUsers = mailCC.Split(';');
foreach (string cc in ccUsers)
email.CC.Add(cc);
}
}
else
{
if (!string.IsNullOrEmpty(mailCC))
mailSubject += "(MailCC " + mailCC + ")";
}
//主题
email.Subject = mailSubject;
//内容
email.Body = mailBody;
//附件
if (!string.IsNullOrEmpty(mailAttch))
{
string[] attachments = mailAttch.Split(';');
foreach (string file in attachments)
{
System.Net.Mail.Attachment attach = new System.Net.Mail.Attachment(file, System.Net.Mime.MediaTypeNames.Application.Octet);
//为附件添加发送时间
System.Net.Mime.ContentDisposition disposition = attach.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
//添加附件
email.Attachments.Add(attach);
}
}
//优先级
email.Priority = (mailPriority == "High") ? System.Net.Mail.MailPriority.High : System.Net.Mail.MailPriority.Normal;
//内容编码、格式
email.BodyEncoding = System.Text.Encoding.UTF8;
email.IsBodyHtml = true;
//SMTP服务器
System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient(MailSmtpServer);
//验证（Credentials 凭证）
client.Credentials = new System.Net.NetworkCredential(mailFrom, mailCode);
//处理待发的电子邮件的方法 (Delivery 发送,传输)
client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
try
{
//发送邮件
client.Send(email);
resultMessage = "Your E-mail Send Success .";
}
catch (Exception ex)
{
resultMessage = "Your E-mail Send Faile And Bring Error :" + ex.Message;
}
}
/// <summary>
/// SendNetMail（密码需配置）（多个收件人、抄送人、附件其参数用";"隔开,最后一个不能有";"）
/// web.config配置如下(配置同<system.web>接点并列于同一级)：
/// <system.net>
/// <mailSettings>
/// <smtp from="yangxiangwen789@163.com">
/// <network host="smtp.163.com" password="a1984c11d13" userName="yangxiangwen789" />
/// </smtp>
/// </mailSettings>
/// </system.net>
/// </summary>
/// <param name="mailFrom">发件人</param>
/// <param name="mailTo">收件人(多个收件人用"；"隔开，最后一个不能有"；")</param>
/// <param name="mailSubject">主题</param>
/// <param name="mailBody">内容</param>
/// <param name="mailAttch">附件（多个附件用"；"隔开，最后一个不能有"；"）</param>
/// <param name="mailPriority">优先级</param>
/// <param name="mailCC">抄送(多个抄送人用"；"隔开，最后一个不能有"；")</param>
/// <param name="resultMessage">输出信息</param>
public static void SendNetMail(string mailFrom, string mailTo, string mailSubject, string mailBody, string mailAttch, string mailPriority, string mailCC, out string resultMessage)
{
//初始化输出参数
resultMessage = "";
//发件人和收件人不为空
if (string.IsNullOrEmpty(mailFrom) || string.IsNullOrEmpty(mailTo))
{
resultMessage = "Please Fill Email Addresser Or Addressee . ";
return;
}
System.Net.Mail.MailMessage email = new System.Net.Mail.MailMessage();
//发件人
email.From = new System.Net.Mail.MailAddress(mailFrom);
//收件人
if (string.IsNullOrEmpty(DebugMail))
{
string[] toUsers = mailTo.Split(';');
foreach (string to in toUsers)
email.To.Add(to);
}
else
{
email.To.Add(DebugMail);
mailSubject += "(MailTo " + mailTo + ")";
}
//抄送
if (string.IsNullOrEmpty(DebugMail))
{
if (!string.IsNullOrEmpty(mailCC))
{
string[] ccUsers = mailCC.Split(';');
foreach (string cc in ccUsers)
email.CC.Add(cc);
}
}
else
{
if (!string.IsNullOrEmpty(mailCC))
mailSubject += "(MailCC " + mailCC + ")";
}
//主题
email.Subject = mailSubject;
//内容
email.Body = mailBody;
//优先级
email.Priority = (mailPriority == "High") ? System.Net.Mail.MailPriority.High : System.Net.Mail.MailPriority.Normal;
//附件
if (!string.IsNullOrEmpty(mailAttch))
{
string[] attachments = mailAttch.Split(';');
foreach (string file in attachments)
{
System.Net.Mail.Attachment attach = new System.Net.Mail.Attachment(file, System.Net.Mime.MediaTypeNames.Application.Octet);
//为附件添加发送时间
System.Net.Mime.ContentDisposition disposition = attach.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
//添加附件
email.Attachments.Add(attach);
}
}
//内容编码
email.BodyEncoding = System.Text.Encoding.UTF8;
email.IsBodyHtml = true;
System.Net.Mail.SmtpClient sc = new System.Net.Mail.SmtpClient();
try
{
//发送邮件
sc.Send(email);
resultMessage = "Your E-mail Send Success .";
}
catch (Exception ex)
{
resultMessage = "Your E-mail Send Faile And Bring Error :" + ex.Message;
}
}
}
}