如何使用pop3c#阅读最新的电子邮件

Question

我想从我的gmail帐户阅读电子邮件。我用的是"OpenPop"。Pop3"从我的gmail帐户中读取电子邮件，我使用下面的代码:-

using OpenPop.Pop3;    
public DataTable ReadEmailsFromId()
        {
            DataTable table = new DataTable();
            try
            {
                using (Pop3Client client = new Pop3Client())
                {
                    int messageCount = client.GetMessageCount();
                    for (int i = messageCount; i > 0; i--)
                    {
                        table.Rows.Add(client.GetMessage(i).Headers.Subject, client.GetMessage(i).Headers.DateSent);
                        string msdId = client.GetMessage(i).Headers.MessageId;
                        OpenPop.Mime.Message msg = client.GetMessage(i);
                        OpenPop.Mime.MessagePart plainTextPart = msg.FindFirstPlainTextVersion();
                        string message = plainTextPart.GetBodyAsText();                           
                    }
                }
            }
        return table;
        }

但是它在抓取2016年3月4日之前的邮件，而不是抓取新的/最新的邮件。"OpenPop"有什么限制吗?还是我错过了什么?

Answer 1

要获得新的电子邮件，只需在用户名之前输入关键字"recent:"，然后它将给出最近30天内收到的电子邮件。

 using OpenPop.Pop3;    
    public DataTable ReadEmailsFromId()
    {
        DataTable table = new DataTable();
        try
        {
            using (Pop3Client client = new Pop3Client())
            {
                client.Connect("pop.gmail.com", 995, true); //For SSL                
                client.Authenticate("recent:Username", "Password", AuthenticationMethod.UsernameAndPassword);
                int messageCount = client.GetMessageCount();
                for (int i = messageCount; i > 0; i--)
                {
                    table.Rows.Add(client.GetMessage(i).Headers.Subject, client.GetMessage(i).Headers.DateSent);
                    string msdId = client.GetMessage(i).Headers.MessageId;
                    OpenPop.Mime.Message msg = client.GetMessage(i);
                    OpenPop.Mime.MessagePart plainTextPart = msg.FindFirstPlainTextVersion();
                    string message = plainTextPart.GetBodyAsText();                           
                }
            }
        }
    return table;
    }

Answer 2

Gmail通过POP3有一些怪癖。试试这些链接，看看是否有帮助。

使用OpenPop从邮件服务器获取最新邮件

当它被编程地用作POP3服务器时，Gmail表现出哪些非标准行为特征?