使用带有gmail的mailsystem.net时，[ALERT]会出现太多同时连接错误 [英] [ALERT] too many simultaneous connections error while using mailsystem.net with gmail

问题描述

I'm trying to use the MailSystem.Net to retrieve mails from my gmail account but i get the above error. I have just follow through an example online to make a demo application as a window service. I tried to log the errors to a folder and after running the service i get the above error repeatedly in my error error folder

What I have tried:

<pre lang="c#">public class MailRepository
        {
            private Imap4Client client;
            public MailRepository(string mailServer, int port, bool ssl, string login, string password)
            {
                if (ssl)

                    Client.ConnectSsl(mailServer, port);
                else

                    Client.Connect(mailServer, port);
                    Client.Login(login, password);


            }
            public IEnumerable<Message> GetAllMails(string mailBox)
            {
                return GetMails(mailBox, "ALL").Cast<Message>();
            }

            public IEnumerable<Message> GetUnreadMails(string mailBox)
            {
                return GetMails(mailBox, "UNSEEN").Cast<Message>();
            }

            protected Imap4Client Client
            {
                get { return client ?? (client = new Imap4Client()); }
            }

            private MessageCollection GetMails(string mailBox, string searchPhrase)
            {
                Mailbox mails = Client.SelectMailbox(mailBox);
                MessageCollection messages = mails.SearchParse(searchPhrase);
                return messages;
            }
        }

< br $>

private void ReadImap()
        {
            var mailRespository = new MailUtil.MailRepository("imap.gmail.com", 993, true, "myGmailAccount", "Mypassword");
            var emailList = mailRespository.GetAllMails("inbox");
            foreach(Message email in emailList)
            {
                //DoSomething

                if(email.Attachments.Count > 0)
                {
                    //DoSomething
                }
            }
        }

推荐答案

看起来连接没有关闭（已断开连接）不再使用时。



要知道如何操作，您应该阅读使用过的 Imap4Client class。



我希望在 Imap4Client 析构函数中关闭连接。但即使这样，最好明确断开连接。



你可以在 MailRepository 类中添加一个disconnect方法并在完成使用后调用（从 ReadImap 返回时）：



It looks like connections are not closed (disconnected) when not used anymore.

To know how to do that you should read the documentation of the used Imap4Client class.

I would expect that connections are closed in the Imap4Client destructor. But even then it would be better to disconnect explicitly.

You can add a disconnect method to the MailRepository class and call that when finished using it (when returning from ReadImap):

public void Disconnect()
{
    // Check the Imap4Client documentation for functions doing this
    if (Client.isConnected())
        Client.Disconnect();
}

但请注意，执行此操作后您无法再查询数据。

But note that you can't query data anymore after doing so.

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