/// <summary>
/// 电子邮件[E-Mail]发送事件
/// </summary>
/// <param name="mailMessage">电子邮件[E-Mail]正文信息</param>
/// <returns>邮件发送结果</returns>
public bool Send(EMailMessage mailMessage)
{
if (string.IsNullOrEmpty(SMTPServer) || SMTPPort <= 0 || string.IsNullOrEmpty(SMTPUserName) || string.IsNullOrEmpty(SMTPPassword))
{
ErrorMessage = "邮件服务器地址、端口号、用户名、密码有空值或填写不正确。";
return(false);
}
bool result = FEMailHelper.SendEmail(SMTPServer, SMTPPort, SMTPUserName, SMTPPassword, mailMessage);
ErrorMessage = result ? string.Empty : FEMailHelper.ErrorMessage;
return(result);
}
/// <summary>
/// 发送电子邮件
/// <para>SMTP服务器需要身份验证</para>
/// </summary>
/// <param name="smtpServer">发信SMTP服务器</param>
/// <param name="smtpPort">端口，默认为25</param>
/// <param name="userName">发信人邮箱地址</param>
/// <param name="password">发信人邮箱密码</param>
/// <param name="mailMessage">邮件内容</param>
public bool SendEmail(string smtpServer, int smtpPort, string userName, string password, EMailMessage mailMessage)
{
return(SendEmail(smtpServer, smtpPort, true, userName, password, mailMessage));
}
/// <summary>
/// 发送电子邮件
/// <para>SMTP服务器不需要身份验证</para>
/// </summary>
/// <param name="smtpServer">发信SMTP服务器</param>
/// <param name="smtpPort">端口，默认为25</param>
/// <param name="mailMessage">邮件内容</param>
public bool SendEmail(string smtpServer, int smtpPort, EMailMessage mailMessage)
{
return(SendEmail(smtpServer, smtpPort, false, "", "", mailMessage));
}
/// <summary>
/// 发送电子邮件
/// </summary>
/// <param name="smtpServer">发信SMTP服务器</param>
/// <param name="smtpPort">端口，默认为25</param>
/// <param name="smtpCheck">是否进行SMTP验证</param>
/// <param name="userName">发信人邮箱地址</param>
/// <param name="password">发信人邮箱密码</param>
/// <param name="mailMessage">邮件内容</param>
/// <returns>电子邮件发送结果</returns>
private bool SendEmail(string smtpServer, int smtpPort, bool smtpCheck, string userName, string password, EMailMessage mailMessage)
{
bool _connResult = Connect(smtpServer, smtpPort);
if (!_connResult)
{
return(false);
}
string _priority = GetPriorityString(mailMessage.Priority);
bool _htmlFlag = (mailMessage.BodyFormat == EMailFormat.HTML);
string[] _sendBuffer;
StringBuilder _sendString = new StringBuilder();
//进行SMTP验证
if (smtpCheck)
{
_sendBuffer = new String[4];
_sendBuffer[0] = string.Format("EHLO {0}{1}", smtpServer, CRLF);
_sendBuffer[1] = string.Format("AUTH LOGIN{0}", CRLF);
_sendBuffer[2] = string.Format("{0}{1}", Base64Encode(userName), CRLF);
_sendBuffer[3] = string.Format("{0}{1}", Base64Encode(password), CRLF);
bool _tmpResult = DialogEx(_sendBuffer, "SMTP服务器验证失败，请核对用户名和密码。");
if (!_tmpResult)
{
return(false);
}
}
else
{
_sendString.Length = 0; //重置
_sendString.Append("HELO ");
_sendString.Append(smtpServer);
_sendString.Append(CRLF);
bool _tmpResult = DialogEx(_sendString.ToString(), null);
if (!_tmpResult)
{
return(false);
}
}
//发件人地址
_sendString.Length = 0; //重置
_sendString.Append("MAIL FROM:<");
_sendString.Append(userName);
_sendString.Append(">");
_sendString.Append(CRLF);
bool _exResult = DialogEx(_sendString.ToString(), "发件人地址错误，或不能为空");
if (!_exResult)
{
return(false);
}
//收件人地址
_sendBuffer = new string[mailMessage.Recipients.Count];
for (int i = 0; i < mailMessage.Recipients.Count; i++)
{
_sendBuffer[i] = string.Format("RCPT TO:<{0}>{1}", mailMessage.Recipients[i] as string, CRLF);
}
_exResult = DialogEx(_sendBuffer, "收件人地址有误");
if (!_exResult)
{
return(false);
}
_sendString.Length = 0; //重置
_sendString.Append("DATA");
_sendString.Append(CRLF);
_exResult = DialogEx(_sendString.ToString(), null);
if (!_exResult)
{
return(false);
}
//发件人姓名
_sendString.Length = 0; //重置
_sendString.Append("From:");
_sendString.Append(mailMessage.FromName);
_sendString.Append("<");
_sendString.Append(mailMessage.From);
_sendString.Append(">");
_sendString.Append(CRLF);
if (mailMessage.Recipients.Count == 0)
{
return(false);
}
else
{
_sendString.Append("To:=?");
_sendString.Append(mailMessage.Charset.ToUpper());
_sendString.Append("?B?");
_sendString.Append(Base64Encode(mailMessage.Recipients[0] as string));
_sendString.Append("?=");
_sendString.Append("<");
_sendString.Append(mailMessage.Recipients[0] as string);
_sendString.Append(">");
_sendString.Append(CRLF);
}
string _tmpString = null;
if (string.IsNullOrEmpty(mailMessage.Subject))
{
_tmpString = "Subject:";
}
else if (string.IsNullOrEmpty(mailMessage.Charset))
{
_tmpString = string.Format("Subject:{0}", mailMessage.Subject);
}
else
{
_tmpString = string.Format("Subject:=?{0}?B?{1}?=", mailMessage.Charset.ToUpper(), Base64Encode(mailMessage.Subject));
}
_sendString.Append(_tmpString);
_sendString.Append(CRLF);
_sendString.Append("X-Priority:");
_sendString.Append(_priority);
_sendString.Append(CRLF);
_sendString.Append("X-MSMail-Priority:");
_sendString.Append(_priority);
_sendString.Append(CRLF);
_sendString.Append("Importance:");
_sendString.Append(_priority);
_sendString.Append(CRLF);
_sendString.Append("X-Mailer: DawnXZ.NuclearUtility.EMailOperation Pubclass [cn]");
_sendString.Append(CRLF);
_sendString.Append("MIME-Version: 1.0");
_sendString.Append(CRLF);
if (mailMessage.Attachments.Count > 0)
{
_sendString.Append("Content-Type: multipart/mixed;");
_sendString.Append(CRLF);
_sendString.Append(" boundary=\"=====");
if (_htmlFlag)
{
_sendString.Append("001_Dragon520636771063_");
}
else
{
_sendString.Append("001_Dragon303406132050_");
}
_sendString.Append("=====\"");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
}
if (_htmlFlag)
{
if (mailMessage.Attachments.Count > 0)
{
_sendString.Append("Content-Type: multipart/alternative;"); //内容格式和分隔符
_sendString.Append(CRLF);
_sendString.Append(" boundary=\"=====003_Dragon520636771063_=====\"");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append("This is a multi-part message in MIME format.");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
}
else
{
_sendString.Append("This is a multi-part message in MIME format.");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append("--=====001_Dragon520636771063_=====");
_sendString.Append(CRLF);
_sendString.Append("Content-Type: multipart/alternative;"); //内容格式和分隔符
_sendString.Append(CRLF);
_sendString.Append(" boundary=\"=====003_Dragon520636771063_=====\"");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
}
_sendString.Append("--=====003_Dragon520636771063_=====");
_sendString.Append(CRLF);
_sendString.Append("Content-Type: text/plain;");
_sendString.Append(CRLF);
if (string.IsNullOrEmpty(mailMessage.Charset))
{
_sendString.Append(" charset=\"iso-8859-1\"");
}
else
{
_sendString.Append(" charset=\"");
_sendString.Append(mailMessage.Charset.ToLower());
_sendString.Append("\"");
}
_sendString.Append(CRLF);
_sendString.Append("Content-Transfer-Encoding: base64");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append(Base64Encode("邮件内容为HTML格式，请选择HTML方式查看"));
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append("--=====003_Dragon520636771063_=====");
_sendString.Append(CRLF);
_sendString.Append("Content-Type: text/html;");
_sendString.Append(CRLF);
if (string.IsNullOrEmpty(mailMessage.Charset))
{
_sendString.Append(" charset=\"iso-8859-1\"");
}
else
{
_sendString.Append(" charset=\"");
_sendString.Append(mailMessage.Charset.ToLower());
_sendString.Append(CRLF);
}
_sendString.Append("Content-Transfer-Encoding: base64");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append(Base64Encode(mailMessage.Body));
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append("--=====003_Dragon520636771063_=====--");
_sendString.Append(CRLF);
}
else
{
if (mailMessage.Attachments.Count > 0)
{
_sendString.Append("--=====001_Dragon303406132050_=====");
_sendString.Append(CRLF);
}
_sendString.Append("Content-Type: text/plain;");
_sendString.Append(CRLF);
if (string.IsNullOrEmpty(mailMessage.Charset))
{
_sendString.Append(" charset=\"iso-8859-1\"");
}
else
{
_sendString.Append(" charset=\"");
_sendString.Append(mailMessage.Charset.ToLower());
_sendString.Append("\"");
}
_sendString.Append(CRLF);
_sendString.Append("Content-Transfer-Encoding: base64");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append(Base64Encode(mailMessage.Body));
_sendString.Append(CRLF);
}
if (mailMessage.Attachments.Count > 0)
{
for (int i = 0; i < mailMessage.Attachments.Count; i++)
{
string _filePath = mailMessage.Attachments[i] as string;
_sendString.Append("--=====");
if (_htmlFlag)
{
_sendString.Append("001_Dragon520636771063_");
}
else
{
_sendString.Append("001_Dragon303406132050_");
}
_sendString.Append("=====");
_sendString.Append(CRLF);
_sendString.Append("Content-Type: text/plain;");
_sendString.Append(CRLF);
_sendString.Append(" name=\"=?");
_sendString.Append(mailMessage.Charset.ToUpper());
_sendString.Append("?B?");
_sendString.Append(Base64Encode(_filePath.Substring(_filePath.LastIndexOf("\\") + 1)));
_sendString.Append("?=\"");
_sendString.Append(CRLF);
_sendString.Append("Content-Transfer-Encoding: base64");
_sendString.Append(CRLF);
_sendString.Append("Content-Disposition: attachment;");
_sendString.Append(CRLF);
_sendString.Append(" filename=\"=?");
_sendString.Append(mailMessage.Charset.ToUpper());
_sendString.Append("?B?");
_sendString.Append(Base64Encode(_filePath.Substring(_filePath.LastIndexOf("\\") + 1)));
_sendString.Append("?=\"");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
_sendString.Append(GetStream(_filePath));
_sendString.Append(CRLF);
_sendString.Append(CRLF);
}
_sendString.Append("--=====");
if (_htmlFlag)
{
_sendString.Append("001_Dragon520636771063_");
}
else
{
_sendString.Append("001_Dragon303406132050_");
}
_sendString.Append("=====--");
_sendString.Append(CRLF);
_sendString.Append(CRLF);
}
_sendString.Append(CRLF);
_sendString.Append(".");
_sendString.Append(CRLF);
_exResult = DialogEx(_sendString.ToString(), "错误信件信息");
if (!_exResult)
{
return(false);
}
_sendString.Length = 0; //重置
_sendString.Append("QUIT");
_sendString.Append(CRLF);
_exResult = DialogEx(_sendString.ToString(), "断开连接时错误");
if (!_exResult)
{
return(false);
}
FNetworkStream.Close();
FTcpClient.Close();
return(true);
}
