.net借助LumiSoft.dll获取邮件内容和附件

最新推荐文章于 2025-08-17 13:33:34 发布

原创最新推荐文章于 2025-08-17 13:33:34 发布 · 2.1k 阅读

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文章标签：

#LumiSoft #.net #邮件

博客介绍了邮件开发相关内容，先是提及三个引用，随后给出代码，主要基于.net和LumiSoft进行开发。

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首先三个引用

using LumiSoft.Net.Mail;
using LumiSoft.Net.MIME;
using LumiSoft.Net.POP3.Client;

然后代码

using (POP3_Client pop3 = new POP3_Client())
            {
                //参数在邮箱里查看每种地址都不相同
                pop3.Connect("URL",995, true);
                pop3.Login("账号", "密码");//两个参数，前者为Email的账号，后者为Email的密码

                POP3_ClientMessageCollection messages = pop3.Messages;
                textBox1.AppendText("共" + messages.Count + "封邮件\r\n");

                for (int i = 0; i < messages.Count; i++)
                {
                    POP3_ClientMessage message = messages[i];//转化为POP3

                    textBox1.AppendText("正在检查第" + (i+1)+ "封邮件...\r\n");
                 
                    if (message != null)
                    {
                        byte[] messageBytes = message.MessageToByte();
                        Mail_Message mime_message = Mail_Message.ParseFromByte(messageBytes);

                        string sender = mime_message.From == null ? "sender is null" : mime_message.From[0].DisplayName;
                        string senderAddress = mime_message.From == null ? "senderAddress is null" : mime_message.From[0].Address;
                        string subject = mime_message.Subject ?? "subject is null";
                        string recDate = mime_message.Date == DateTime.MinValue ? "date not specified" : mime_message.Date.ToString();
                        string content = mime_message.BodyText ?? "content is null";
                        textBox1.AppendText(string.Format("邮件地址为{0}的{1}，于{2}发送了主题为{3}的邮件\r\n", senderAddress, sender, recDate, subject));
                        textBox1.AppendText(string.Format("内容为{0}\r\n", content));
                    //附件处理
                        MIME_Entity[] attachments = mime_message.GetAttachments(true, true);

                        foreach (MIME_Entity entity in attachments)
                        {
                            if (entity.ContentDisposition != null)
                            {
                                string fileName = entity.ContentDisposition.Param_FileName;
                                if (!string.IsNullOrEmpty(fileName))
                                {
                                    DirectoryInfo dir = new DirectoryInfo(@"D:\段龙治\");
                                    if (!dir.Exists) dir.Create();

                                    string path = Path.Combine(dir.FullName, fileName);
                                    MIME_b_SinglepartBase byteObj = (MIME_b_SinglepartBase)entity.Body;
                                    Stream decodedDataStream = byteObj.GetDataStream();
                                    using (FileStream fs = new FileStream(path, FileMode.Create))
                                    {
                                        LumiSoft.Net.Net_Utils.StreamCopy(decodedDataStream, fs, 4000);
                                    }
                                  textBox1.AppendText(string.Format("{0}已经被下载。", fileName));
                                }
                            }
                        }
                    }
                }
            }