asp.net jmail收取邮件出错?????配置没问题呀????

1.   编译运行,捕捉到错误-----"请检查邮件服务器配置是否正确"
2. 我的配置信息
    邮件帐号: [email protected]
        密码:111111(这里用她替代真实的密码)
        pop3设置:pop3.monwei.com
        pop3端口:110
同样是以上设置信息,用foxmail收取邮件正常呀.....奇怪了?????
   
3.收取邮件代码如下所示
private void btn_Receive_Click(object sender, System.EventArgs e)
{
  jmail.POP3Class popMail= new jmail.POP3Class();
  jmail.Message mailMessage;
  jmail.Attachments atts;
  jmail.Attachment att;
try
{
popMail.Connect("[email protected]","111111","pop3.monwei.com",110);
if(0<popMail.Count)
{
for(int i=1;i<=popMail.Count;i++)
{
mailMessage=popMail.Messages[i];
atts=mailMessage.Attachments;
mailMessage.Charset="GB2312";
mailMessage.Encoding="Base64";
mailMessage.ISOEncodeHeaders=true;
lblsend.Text=mailMessage.FromName;
lbladdress.Text=mailMessage.From;
lblsubject.Text=mailMessage.Subject;
txtcontent.Text=mailMessage.Body;
for(int j=0;j<atts.Count;j++)
{
att=atts[j];
string attname=att.Name;
att.SaveToFile("D:\\Inetpub\\wwwroot\\WSq\\Webs\\WebMail\\attFiles\\"+attname);
}

 
 
}
att=null;
atts=null;
}
else
{
Response.Write("没有新邮件！");
}
popMail.DeleteMessages();//删除邮件服务器的邮件
popMail.Disconnect();//和邮件服务器断开连接
popMail=null;
}
catch
{
                 Response.Write("请检查邮件服务器配置是否正确！");
}
}