本文主要是介绍利用email.net设置网络代理发邮件，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
最近在做一个项目，客户的内部网络需要设置代理才能收发邮件，本来一个简单的东西突然变得复杂了，在baidu搜索了很久都没找到适合的组件，baidu就像个废物一样，没办法只能去yahoo搜，结果在微软的组件网站上找到了email.net，地址是：http://visualstudiogallery.msdn.microsoft.com/28b96cd4-b755-48a0-b686-9abb7d5607a8， 这个网站还可以找到很多不错的关于.net的组件，C#开发者可以多上上。
通过代理发邮件的代码如下：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Email.Net.Common;
using Email.Net.Common.Collections;
using Email.Net.Common.Configurations;
using Email.Net.Smtp;namespace ProxyUsageDemo
{public partial class Demo : Form{public Demo(){InitializeComponent();proxyType.Items.AddRange(new object [] {EProxyType.No, EProxyType.SOCKS5, EProxyType.SOCKS4});proxyType.DropDownStyle = ComboBoxStyle.DropDownList;proxyType.SelectedIndex = 1;proxyType.Refresh();}private void sendMessage_Click(object sender, EventArgs e){//Create and send message using proxy//SMTP client settings//URL of host to connect totarget.Host = hostBox.Text;//TCP port for connectiontarget.Port = (ushort)portNum.Value;//Username to login to the SMTP servertarget.Username = loginBox.Text;//Password to login to the SMTP servertarget.Password = passwordBox.Text;//Configure proxytarget.ProxyType = (EProxyType)proxyType.SelectedItem;target.ProxyHost = proxyHostBox.Text;target.ProxyPort =(ushort) proxyPortNum.Value;target.ProxyUser = proxyUserBox.Text;target.ProxyPassword = proxyPasswordBox.Text;//Create address and message EmailAddressCollection addressCollection = new EmailAddressCollection();addressCollection.Add(new EmailAddress(toBox.Text));//Create messageSmtpMessage message = new SmtpMessage(new EmailAddress(fromBox.Text),//Source addressaddressCollection,//Address of the recipientsubjectBox.Text,//Message subjectmessageBox.Text //Message text);SendResult result = target.SendOne(message);//Send message if (result.IsSuccessful){MessageBox.Show("Message sent successful!");}else{MessageBox.Show("Message sending failed!");}}}
}
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