从ConcurrentBag c#中获取项目

我有一个函数如何为我返回ConcurrentBag这个ConcurrentBag包含ip和他的端口。第一步，他从文件txt中获得IP和端口的值。然后将这个值添加到ConcurrentBag中。返回一个包含ip和port的ConcurrentBag，

这是我的函数loadsocks:

public static ConcurrentBag<ServerSocks> loadSocks()
        {
            var result = new ConcurrentBag<ServerSocks>();
            string fileSocks = Path.GetFullPath(Path.Combine(Application.StartupPath, "socks-list.txt"));
            var input = File.ReadAllText(fileSocks);
            var r = new Regex(@"('d{1,3}'.'d{1,3}'.'d{1,3}'.'d{1,3}):('d{1,5})");
            foreach (Match match in r.Matches(input))
            {
                string ip = match.Groups[1].Value;
                string port = match.Groups[2].Value;
                if (result.Any(x => x.IpAddress.Trim() == ip.Trim()))
                    continue; 
                result.Add(new ServerSocks { IpAddress = ip, Port = Convert.ToInt32(port) });
            }
            return result;
        }

对我来说，问题是进入方法main，我想为每个循环给我一个新的ip和他的端口，我想影响他们的属性oServer。SocksProxyServer和oServer.SocksProxyPort.

这是main方法中的代码:

ConcurrentBag<ServerSocks> list = loadSocks();
            var oServer = new SmtpServer("");

            for (int i = 0; i < nRcpt; i++)
            {
                 while (!list.IsEmpty)
            {
                ServerSocks ipAndPort;
                if (!list.TryTake(out ipAndPort)) continue;
                try
                {
                    //code here to send message using below IP and Port
                    oServer.SocksProxyServer = ipAndPort.IpAddress;
                    oServer.SocksProxyPort = ipAndPort.Port;
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
            }
                arMail[i] = new SmtpMail("TryIt");
                arSmtp[i] = new SmtpClient();
                SmtpMail oMail = arMail[i];
                oMail.From = "";
                //oMail.DKCertificate
                oMail.Sender = "";
                oMail.Subject = "";
                oMail.TextBody = "";
                oMail.AutoTextBody = false;
                try
                {
                    string fileHtml = Path.GetFullPath(Path.Combine(Application.StartupPath, "lettercmb.html"));
                    oMail.ImportHtmlBody(fileHtml, ImportHtmlBodyOptions.NoOptions);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex);
                }
                SmtpClient oSmtp = arSmtp[i];
                Console.WriteLine(oServer.SocksProxyServer);
                Console.ReadLine();
                arResult[i] = oSmtp.BeginSendMail(oServer, oMail, null, null);
                Console.WriteLine(String.Format("Start to send email to {0} ...",
                                 arRcpt[i]));

            }

在我的文件TXT我有2 IP 134.34.54.154:17815173.33.54.157:17815

USE me always 134.34.54.154，我不知道我的代码是怎么出问题的，我想要什么我想如果第一个消息发送第二个消息必须使用第二个IP我该怎么办?

谢谢