Esta todo a medio hacerse pero quiero versionar esto ya para no perder

nada

Aspnet/Emailer/Builder/EmailBuilder.cs

@@ -0,0 +1,28 @@
+using System.Net.Mail;
+namespace AlquilaFacil.Emailer.Builder;
+
+public class EmailBuilder
+{
+    private MailMessage _message = new();
+
+    public EmailBuilder To(string to)
+    {
+        _message.To.Add(to);
+        return this;
+    }
+
+    public EmailBuilder Subject(string subject)
+    {
+        _message.Subject = subject;
+        return this;
+    }
+
+    public EmailBuilder Body(string email, string pin)
+    {
+        _message.IsBodyHtml = true;
+        _message.Body = new HtmlGenerator().GenerarMail2fa(email, pin);
+        return this;
+    }
+
+    public MailMessage Build() => _message;
+}