一个通过web.Mail发送邮件的类

using System;
using System.Web;
using System.Web.Mail;
using Dottext.Framework;
using Dottext.Framework.Configuration;

namespace YourNamespace.Email
{
/// <summary>
/// Default implementation of the IMailProvider
/// </summary>
public class SystemMail : IMailProvider
{
public SystemMail(){}

#region
private string _to;
public string To
{
get{return _to;}
set{_to = value;}
}

private string _from;
public string From
{
get{return _from;}
set{_from = value;}
}

private string _subject;
public string Subject
{
get{return _subject;}
set{_subject = value;}
}

private string _body;
public string Body
{
get{return _body;}
set{_body = value;}
}
#endregion

private string _adminEmail;
public string AdminEmail
{
get{return _adminEmail;}
set{_adminEmail = value;}
}

private string _smtpServer = "localhost";
public string SmtpServer
{
get{return _smtpServer;}
set{_smtpServer = value;}
}

private string _password;
public string Password
{
get{return _password;}
set{_password = value;}
}

private string _userName;
public string UserName
{
get{return _userName;}
set{_userName = value;}
}

public bool Send(string to, string from, string subject, string message)
{
try
{
MailMessage em = new MailMessage();
em.To = to;
em.From = from;
em.Subject = subject;
em.Body = message;

//Found out how to send authenticated email via System.Web.Mail at http://SystemWebMail.com (fact 3.8)
if(this.UserName != null && this.Password != null)
{
em.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); //basic authentication
em.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", this.UserName); //set your username here
em.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", this.Password); //set your password here

}

SmtpMail.SmtpServer = this.SmtpServer;
SmtpMail.Send(em);

return true;
}
catch
{
return false;
}
}

}
}