public class SendMail
{
private MailMessage mailMessage;
private SmtpClient smtpClient;
private string password;//发件人密码
/// <summary>
/// 带参数的构造函数,初始化发送邮件的条件
/// </summary>
/// <param name="To">收件人地址</param>
/// <param name="From">发件人地址</param>
/// <param name="Body">邮件正文</param>
/// <param name="Title">邮件的主题</param>
/// <param name="Password">发件人密码</param>
public SendMail(string[] To, string From, string Body, string Title, string Password)
{
mailMessage = new MailMessage();
foreach (var item in To)
{
mailMessage.To.Add(item);
}
mailMessage.From = new System.Net.Mail.MailAddress(From);
mailMessage.Subject = Title;
mailMessage.Body = Body;
mailMessage.IsBodyHtml = true;
mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
mailMessage.Priority = System.Net.Mail.MailPriority.Normal;
this.password = Password;
}
/// <summary>
/// 添加附件
/// </summary>
public void Attachments(string Path)
{
string[] path = Path.Split(‘,‘);
Attachment data;
ContentDisposition disposition;
for (int i = 0; i < path.Length; i++)
{
data = new Attachment(path[i], MediaTypeNames.Application.Octet);//实例化附件
disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(path[i]);//获取附件的创建日期
disposition.ModificationDate = System.IO.File.GetLastWriteTime(path[i]);//获取附件的修改日期
disposition.ReadDate = System.IO.File.GetLastAccessTime(path[i]);//获取附件的读取日期
mailMessage.Attachments.Add(data);//添加到附件中
}
}
/// <summary>
/// 异步发送邮件
/// </summary>
/// <param name="CompletedMethod"></param>
public void SendAsync(SendCompletedEventHandler CompletedMethod)
{
if (mailMessage != null)
{
smtpClient = new SmtpClient();
smtpClient.Credentials = new System.Net.NetworkCredential(mailMessage.From.Address, password);//设置发件人身份的票据
smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
smtpClient.Host = "smtp." + mailMessage.From.Host;
smtpClient.SendCompleted += new SendCompletedEventHandler(CompletedMethod);//注册异步发送邮件完成时的事件
smtpClient.SendAsync(mailMessage, mailMessage.Body);
}
}
/// <summary>
/// 发送邮件
/// </summary>
public void Send()
{
if (mailMessage != null)
{
using (smtpClient = new SmtpClient())
{
smtpClient.Timeout = 9999999;
smtpClient.EnableSsl = true;
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = new System.Net.NetworkCredential(mailMessage.From.Address, password);//设置发件人身份的票据
smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
smtpClient.Host = "smtp." + mailMessage.From.Host;
smtpClient.Send(mailMessage);
mailMessage.Attachments.Dispose();
}
}
}
}

C# 邮件发送