public class MailHelper
{
/// <summary>
/// 邮件服务器地址 smtp.exmail.qq.com/smtp.163.com 不用SSL连接端口默认25
/// </summary>
private static string MailServer = Config.GetValue("MailHost");
/// <summary>
/// 用户名 发送邮箱
/// </summary>
private static string MailUserName = Config.GetValue("MailUserName");
/// <summary>
/// 密码 客户端授权码
/// </summary>
private static string MailPassword = Config.GetValue("MailPassword");
/// <summary>
/// 名称
/// </summary>
private static string MailName = Config.GetValue("MailName");
/// <summary>
/// 同步发送邮件
/// </summary>
/// <param name="to">收件人邮箱地址</param>
/// <param name="subject">主题</param>
/// <param name="body">内容</param>
/// <param name="encoding">编码</param>
/// <param name="isBodyHtml">是否Html</param>
/// <param name="enableSsl">是否SSL加密连接</param>
/// <returns>是否成功</returns>
public static bool Send(string to, string subject, string body, string encoding = "UTF-8", bool isBodyHtml = true, bool enableSsl = false)
{
try
{
MailMessage message = new MailMessage();
// 接收人邮箱地址
message.To.Add(new MailAddress(to));
message.From = new MailAddress(MailUserName);
message.BodyEncoding = Encoding.GetEncoding(encoding);
message.Body = body;
//GB2312
message.SubjectEncoding = Encoding.GetEncoding(encoding);
message.Subject = subject;
message.IsBodyHtml = isBodyHtml;
SmtpClient smtpclient = new SmtpClient(MailServer, 25);
smtpclient.Credentials = new System.Net.NetworkCredential(MailUserName, MailPassword);
//SSL连接
smtpclient.EnableSsl = enableSsl;
smtpclient.Send(message);
return true;
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return false;
}
}
/// <summary>
/// 异步发送邮件 独立线程
/// </summary>
/// <param name="to">邮件接收人</param>
/// <param name="title">邮件标题</param>
/// <param name="body">邮件内容</param>
/// <param name="port">端口号</param>
/// <returns></returns>
public static void SendByThread(string to, string title, string body, int port = 25)
{
new Thread(new ThreadStart(delegate ()
{
try
{
SmtpClient smtp = new SmtpClient();
//邮箱的smtp地址
smtp.Host = MailServer;
//端口号
smtp.Port = port;
//构建发件人的身份凭据类
smtp.Credentials = new NetworkCredential(MailUserName, MailPassword);
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
//构建消息类
MailMessage objMailMessage = new MailMessage();
//设置优先级
objMailMessage.Priority = MailPriority.Normal;
//消息发送人
objMailMessage.From = new MailAddress(MailUserName, "提醒", System.Text.Encoding.UTF8);
//收件人
objMailMessage.To.Add(to);
//标题
objMailMessage.Subject = title.Trim();
//标题字符编码
objMailMessage.SubjectEncoding = System.Text.Encoding.UTF8;
//正文
objMailMessage.Body = body.Trim();
objMailMessage.IsBodyHtml = true;
//内容字符编码
objMailMessage.BodyEncoding = System.Text.Encoding.UTF8;
////不被当作垃圾邮件的关键代码--Begin
//objMailMessage.Headers.Add("X-Priority", "3");
//objMailMessage.Headers.Add("X-MSMail-Priority", "Normal");
//objMailMessage.Headers.Add("X-Mailer", "Microsoft Outlook Express 6.00.2900.2869");
//objMailMessage.Headers.Add("X-MimeOLE", "Produced By Microsoft MimeOLE V6.00.2900.2869");
//objMailMessage.Headers.Add("ReturnReceipt", "1");
////不被当作垃圾邮件的关键代码--End
//发送
smtp.Send(objMailMessage);
}
catch (Exception ex)
{
}
})).Start();
}
/// <summary>
/// 发送
/// </summary>
/// <param name="account">配置</param>
/// <param name="mailModel">信息</param>
public static void Send(MailAccount account, MailModel mailModel)
{
try
{
MailMessage mailMessage = new MailMessage();
mailMessage.From = new MailAddress(account.Account, account.AccountName);
//发件人
if (!string.IsNullOrEmpty(mailModel.To))
{
var ToArray = mailModel.To.Split(',');
foreach (var item in ToArray)
{
mailMessage.To.Add(new MailAddress(item));
}
}
//抄送人
if (!string.IsNullOrEmpty(mailModel.CC))
{
var CCArray = mailModel.CC.Split(',');
foreach (var item in CCArray)
{
mailMessage.CC.Add(new MailAddress(item));
}
}
//密送人
if (!string.IsNullOrEmpty(mailModel.Bcc))
{
var BccArray = mailModel.Bcc.Split(',');
foreach (var item in BccArray)
{
mailMessage.Bcc.Add(new MailAddress(item));
}
}
//附件
//var filePath = DirFileHelper.GetAbsolutePath("~/Resource/EmailFile/");
//foreach (MailFile item in mailModel.Attachment)
//{
// var attachment = new Attachment(filePath + item.FileId);
// attachment.Name = item.FileName;
// mailMessage.Attachments.Add(attachment);
//}
mailMessage.Subject = mailModel.Subject;
mailMessage.Body = mailModel.BodyText;
mailMessage.IsBodyHtml = true;
mailMessage.Priority = MailPriority.Normal;
mailMessage.SubjectEncoding = Encoding.UTF8;
mailMessage.BodyEncoding = Encoding.UTF8;
//不被当作垃圾邮件的关键代码--Begin
mailMessage.Headers.Add("X-Priority", "3");
mailMessage.Headers.Add("X-MSMail-Priority", "Normal");
mailMessage.Headers.Add("X-Mailer", "Microsoft Outlook Express 6.00.2900.2869");
mailMessage.Headers.Add("X-MimeOLE", "Produced By Microsoft MimeOLE V6.00.2900.2869");
mailMessage.Headers.Add("ReturnReceipt", "1");
//不被当作垃圾邮件的关键代码--End
using (SmtpClient smtpClient = new SmtpClient(account.SMTPHost, account.SMTPPort))
{
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = new NetworkCredential(account.Account, account.Password);
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.Send(mailMessage);
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 删除
/// </summary>
/// <param name="account">配置</param>
/// <param name="UID">UID</param>
public static void Delete(MailAccount account, string UID)
{
try
{
using (POP3_Client pop3Client = new POP3_Client())
{
pop3Client.Connect(account.POP3Host, account.POP3Port, false);
pop3Client.Login(account.Account, account.Password);
if (pop3Client.Messages.Count > 0)
{
foreach (POP3_ClientMessage messages in pop3Client.Messages)
{
if (messages.UID == UID)
{
messages.MarkForDeletion();
}
}
}
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取
/// </summary>
/// <param name="account">配置</param>
/// <param name="receiveCount">已收邮件数、注意：如果已收邮件数和邮件数量一致则不获取</param>
/// <returns></returns>
public static List<MailModel> Get(MailAccount account, int receiveCount)
{
try
{
var filePath = DirFileHelper.GetAbsolutePath("~/Resource/EmailFile/");
var resultList = new List<MailModel>();
using (POP3_Client pop3Client = new POP3_Client())
{
pop3Client.Connect(account.POP3Host, account.POP3Port, account.Ssl);
pop3Client.Login(account.Account, account.Password);
var messages = pop3Client.Messages;
if (receiveCount == messages.Count)
{
return resultList;
}
for (int i = messages.Count - 1; receiveCount <= i; i--)
{
var messageItem = messages[i];
var messageHeader = Mail_Message.ParseFromByte(messageItem.MessageToByte());
resultList.Add(new MailModel()
{
UID = messageItem.UID,
To = messageHeader.From == null ? "" : messageHeader.From[0].Address,
ToName = messageHeader.From == null ? "" : messageHeader.From[0].DisplayName,
Subject = messageHeader.Subject,
BodyText = messageHeader.BodyHtmlText,
Attachment = GetFile(filePath, messageHeader.GetAttachments(true, true), messageItem.UID),
Date = messageHeader.Date,
});
}
}
return resultList;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 解析附件并且下载到本地目录
/// </summary>
/// <param name="filePath">路径</param>
/// <param name="messageFile">附件对象</param>
/// <param name="UID"></param>
/// <returns></returns>
private static List<MailFile> GetFile(string filePath, MIME_Entity[] messageFile, string UID)
{
var resultList = new List<MailFile>();
foreach (MIME_Entity entity in messageFile)
{
var fileName = entity.ContentType.Param_Name;
var fileByte = (MIME_b_SinglepartBase)entity.Body;
var fileId = UID + "_" + fileName;
DirFileHelper.CreateFile(filePath + fileId, fileByte.Data);
var fileSize = DirFileHelper.GetFileSize(filePath + fileId);
resultList.Add(new MailFile
{
FileId = fileId,
FileName = fileName,
FileSize = DirFileHelper.ToFileSize(fileSize)
});
}
return resultList;
}
}