C#—发邮件方法

前几天，有个系统需要增加一个发邮件的功能，于是写了一个方法，如下：

/// <summary>
/// 
/// </summary>
/// <param name='clientHost'>邮件服务器地址</param>
/// <param name='emailAddress'>发件人邮箱地址</param>
/// <param name='receiveAddress'>收件人邮箱地址</param>
/// <param name='userName'>发件人邮箱用户名</param>
/// <param name='password'>发件人邮箱密码</param>
/// <param name="subject">邮件主题</param>
/// <param name="body">邮件正文</param>
        private void SendEmail(string clientHost, string emailAddress, string receiveAddress,
            string userName, string password, string subject, string body)
        {
            MailMessage mail = new MailMessage();
            mail.From = new MailAddress(emailAddress);
            mail.To.Add(new MailAddress(receiveAddress));
            mail.Subject = subject;
            mail.Body = body;
            mail.IsBodyHtml = true;
            mail.DeliveryNotificationOptions = DeliveryNotificationOptions.OnSuccess;

            SmtpClient client = new SmtpClient();
            client.Host = clientHost;
            client.Credentials = new NetworkCredential(userName, password);
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            try
            {
                client.Send(mail);
            }
            catch (Exception ex)
            {
                // Get ex.Message and do something
            }
        }

此方法需要引用两个命名空间：

using System.Net.Mail;
using System.Net;