feat(*): Add base project files

EmailService/Message.cs

@@ -0,0 +1,28 @@
+using Microsoft.AspNetCore.Http;
+using MimeKit;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace EmailService
+{
+    public class Message
+    {
+        public List<MailboxAddress> To { get; set; }
+        public string Subject { get; set; }
+        public string Content { get; set; }
+
+        public IFormFileCollection Attachments { get; set; }
+
+        public Message(IEnumerable<string> to, string subject, string content, IFormFileCollection attachments = null)
+        {
+            To = new List<MailboxAddress>();
+
+            To.AddRange(to.Select(x => new MailboxAddress(x)));
+            Subject = subject;
+            Content = content;
+            Attachments = attachments;
+        }
+    }
+}