{
// 文本信息
WriteString (tcp.GetStream(), "--unique-boundary-2");
WriteString (tcp.GetStream(), "Content-Type: text/plain;charset=" + languageEncoding);
WriteString (tcp.GetStream(), "Content-Transfer-Encoding:" + encoding);
WriteString (tcp.GetStream(), "");
WriteString (tcp.GetStream(), body);
WriteString (tcp.GetStream(), "");//一个部分写完之后就写如空信息，分段
WriteString (tcp.GetStream(), "--unique-boundary-2--");//分隔符的结束符号，尾巴后面多了--
WriteString (tcp.GetStream(), "");
}
else
{
//html信息
WriteString (tcp.GetStream(), "--unique-boundary-2");
WriteString (tcp.GetStream(), "Content-Type: text/html;charset=" + languageEncoding);
WriteString (tcp.GetStream(), "Content-Transfer-Encoding:" + encoding);
WriteString (tcp.GetStream(), "");
WriteString (tcp.GetStream(), htmlBody);
WriteString (tcp.GetStream(), "");
WriteString (tcp.GetStream(), "--unique-boundary-2--");//分隔符的结束符号，尾巴后面多了--
WriteString (tcp.GetStream(), "");
}
// 发送附件
// 对文件列表做循环
for (int i = 0; i < attachments.Count; i++)
{
WriteString (tcp.GetStream(), "--unique-boundary-1"); // 邮件内容分隔符
WriteString (tcp.GetStream(), "Content-Type: application/octet-stream;name=\"" + ((AttachmentInfo)attachments[i]).FileName + "\""); // 文件格式
WriteString (tcp.GetStream(), "Content-Transfer-Encoding: base64"); // 内容的编码
WriteString (tcp.GetStream(), "Content-Disposition:attachment;filename=\"" + ((AttachmentInfo)attachments[i]).FileName + "\""); // 文件名
WriteString (tcp.GetStream(), "");
WriteString (tcp.GetStream(), ((AttachmentInfo)attachments[i]).Bytes); // 写入文件的内容
WriteString (tcp.GetStream(), "");
}
Command (tcp.GetStream(), ".", "250"); // 最后写完了，输入"."
// 关闭连接
tcp.Close ();
}
///
/// 向流中写入字符
///
/// 来自TcpClient的流
/// 写入的字符
protected void WriteString (NetworkStream netStream, string str)
{
str = str + "\r\n"; // 加入换行符
// 将命令行转化为byte[]
上一篇:使用ASP.NET开发邮件发送系统
下一篇:基于.NET的邮件解决方案
|
