Static email methods that make life eas(ier)

EmailHelper.cs

using System;
using System.Collections.Generic;
using System.Net.Mail;
using System.Text.RegularExpressions;

namespace MiniRideAndDrive.Web {
    public static class EmailHelper {
        public static string EmailValidationExpression {
            get {
                return @"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}" +
                     @"\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\" +
                     @".)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$";
            }
        }

        public static void SendMessage(string mailServer, string mailPort, string message, string sender, string recipient, string subject) {
            SmtpClient mailClient = new SmtpClient(mailServer);
            mailClient.Port = Int32.Parse(mailPort);

            MailMessage emailMessage = new MailMessage(sender, recipient, subject, message);

            mailClient.Send(emailMessage);
        }

        public static void SendMessage(string mailServer, string mailPort, string message, string sender, string recipient, string subject, bool isHtml) {
            SmtpClient mailClient = new SmtpClient(mailServer);
            mailClient.Port = Int32.Parse(mailPort);

            MailMessage emailMessage = new MailMessage(sender, recipient, subject, message);
            emailMessage.IsBodyHtml = isHtml;

            mailClient.Send(emailMessage);
        }

        public static void SendMessage(string mailServer, string mailPort, string message, string sender, string recipient, string subject, IList<string> bccEmailAddresses) {
            SmtpClient mailClient = new SmtpClient(mailServer);
            mailClient.Port = Int32.Parse(mailPort);

            MailMessage emailMessage = new MailMessage(sender, recipient, subject, message);

            if (bccEmailAddresses != null && bccEmailAddresses.Count > 0)
                foreach (string bccEmailAddress in bccEmailAddresses)
                    emailMessage.Bcc.Add(new MailAddress(bccEmailAddress));

            mailClient.Send(emailMessage);
        }

        public static void SendMessage(string mailServer, string mailPort, string message, string sender, string recipient, string subject, IList<string> bccEmailAddresses, bool isHtml) {
            SendEmail(mailServer, mailPort, message, sender, recipient, subject, bccEmailAddresses, isHtml);
        }

        private static void SendEmail(string mailServer, string mailPort, string message, string sender, string recipient, string subject, IList<string> bccEmailAddresses, bool isHtml) {
            SmtpClient mailClient = new SmtpClient(mailServer);
            mailClient.Port = Int32.Parse(mailPort);

            MailMessage emailMessage = new MailMessage(sender, recipient, subject, message);
            emailMessage.IsBodyHtml = isHtml;

            if (bccEmailAddresses != null && bccEmailAddresses.Count > 0)
                foreach (string bccEmailAddress in bccEmailAddresses)
                    emailMessage.Bcc.Add(new MailAddress(bccEmailAddress));

            mailClient.Send(emailMessage);
        }

        #region Send mail with attachment
        public static void SendMessage(string mailServer, string mailPort, string message, string sender, string recipient, string subject, IList<string> bccEmailAddresses, bool isHtml, Attachment attachment) {
            SendEmail(mailServer, mailPort, message, sender, recipient, subject, bccEmailAddresses, isHtml, attachment);
        }

        private static void SendEmail(string mailServer, string mailPort, string message, string sender, string recipient, string subject, IList<string> bccEmailAddresses, bool isHtml, Attachment attachment) {
            SmtpClient mailClient = new SmtpClient(mailServer);
            mailClient.Port = Int32.Parse(mailPort);

            MailMessage emailMessage = new MailMessage(sender, recipient, subject, message);
            emailMessage.IsBodyHtml = isHtml;

            if (attachment != null)
                emailMessage.Attachments.Add(attachment);

            if (bccEmailAddresses != null && bccEmailAddresses.Count > 0)
                foreach (string bccEmailAddress in bccEmailAddresses)
                    emailMessage.Bcc.Add(new MailAddress(bccEmailAddress));

            mailClient.Send(emailMessage);
        }
        #endregion

        public static bool IsValidEmail(string email) {
            Regex re = new Regex(EmailValidationExpression);

            return re.Match(email).Success;

        }

    }
}