PIAPS_CW/BusinessLogic/Tools/Mail/MailSender.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Text;
using System.Threading.Tasks;

namespace BusinessLogic.Tools.Mail
{
    public class MailSender
    {
        private static string _email;
        private static string _password;
        private static string _smtpClientHost;
        private static short _smtpClientPort;

        public void SetupMailOptions(MailOptions options)
        {
            _email = options.Email;
            _password = options.Password;
            _smtpClientHost = options.SmtpClientHost;
            _smtpClientPort = options.SmtpClientPort;
        }

        public static void Send(Mail mail)
        {
            if (!mail.IsSendable) return;

            using SmtpClient client = new SmtpClient(_smtpClientHost, _smtpClientPort);
            client.Credentials = new NetworkCredential(_email, _password);
            client.EnableSsl = true;

            using MailMessage message = new MailMessage();

            message.From = new MailAddress(_email);
            foreach (string to in mail.To)
            {
                message.To.Add(to);
            }

            message.Subject = mail.Title;
            message.Body = mail.Body;

            client.Send(message);
        }
    }
}