Postal - wysyłka email w ASP.NET MVC

BaseMailer.cs

public class BaseMailer
{
    protected void Send(Email email)
    {
        var mailerName = GetType().Name.Replace("Mailer", string.Empty);

        var viewsPath = Path.GetFullPath(string.Format(HostingEnvironment.MapPath(@"~/Views/Emails/{0}"), mailerName));
        var engines = new ViewEngineCollection();
        engines.Add(new FileSystemRazorViewEngine(viewsPath));

        var emailService = new EmailService(engines);

        emailService.Send(email);
    }
}

Register.cshtml

@model PostalExample.ViewModels.Users.RegisterEmail

To: @Model.Email
Subject: Nowe konto

<h1>Witaj @Model.FirstName!</h1>
<p>Dziękujemy za założenie konta.</p>

RegisterEmail.cs

public class RegisterEmail : Email
{
    public string FirstName { get; set; }

    public string Email { get; set; }
}

UsersMailer1.cs

public class UsersMailer : IUserMailer
{
    public void SendRegisterEmail(User user)
    {
        var email = new RegisterEmail()
        {
            Email = user.Email,
            FirstName = user.FirstName
        };

        email.Send();
    }
}

public interface IUserMailer
{
    void SendRegisterEmail(User user);
}

UsersMailer2.cs

public class UsersMailer : BaseMailer, IUserMailer
{
    public void SendRegisterEmail(User user)
    {
        var email = new RegisterEmail()
        {
            Email = user.Email,
            FirstName = user.FirstName
        };

        Send(email);
    }
}

web.config

<system.net>
  <mailSettings>
    <smtp from="adres email">
      <network enableSsl="true" host="smtp.gmail.com" port="587" userName="nazwa użytkownika" password="hasło" />
    </smtp>
  </mailSettings>
</system.net>