Asp.net 自动发送邮件的方法
今天有一个模块需要自动发送邮件的功能，就随便写了一个，记录一下作为积累。
一、首先需要配置web.config文件：
<system.net>
<mailSettings>
<smtp from="Emailname">
<network host="smtp.163.com" userName="Emailname" password="Emailpassword"
port="25" defaultCredentials="false"/>
</smtp>
</mailSettings>
</system.net>
二、然后编写发送邮件的函数：
//// <summary>
/// 邮件发送方法(带附件)
/// </summary>
/// <param name="mailto">收件人地址。如：receiver@163.com</param>
/// <param name="mailsubject">邮件标题</param>
/// <param name="mailbody">邮件正文</param>
/// <param name="mailfrom">邮件发送人地址。如：sender@163.com</param>
/// <param name="list">附件路径</param>
/// <returns></returns>
public bool MySendMail(string mailto, string mailsubject, string mailbody, string mailfrom, ArrayList list)
{
try
{
//邮件发送人地址
System.Net.Mail.MailAddress from = new System.Net.Mail.MailAddress(mailfrom);
//如test@163.com,初步测试，用test@sina.com不行，用163的邮件服务器，就必须用163邮箱的用户名
//收件人地址
System.Net.Mail.MailAddress to = new System.Net.Mail.MailAddress(mailto);//如test@tom.com
System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage(from, to);
mail.Subject = mailsubject;
mail.Body = mailbody;
//以下设置服务器
System.Net.Mail.SmtpClient mySmth = new System.Net.Mail.SmtpClient();
//以下为增加附件
int count = list.Count;
for (int i = 0; i < count; i++)
{
