Initial commit: WpywMail 自建邮件系统：.NET 8 原生 SMTP/IMAP 服务端（DKIM 签名、SPF/DKIM/DMARC 入站校验、SQLite 存储、完整账号体系）、Node 服务端、WinUI 3 客户端与 Web 前端

server-native/Program.cs

@@ -0,0 +1,23 @@
+using System.Text.Json;
+
+namespace WpywMail.Native;
+
+public static class Program
+{
+    public static async Task Main()
+    {
+        var settingsPath = Path.Combine(AppContext.BaseDirectory, "appsettings.json");
+        if (!File.Exists(settingsPath)) throw new FileNotFoundException("请将 appsettings.example.json 复制为 appsettings.json 并填写密码。", settingsPath);
+        var config = JsonSerializer.Deserialize<AppConfig>(await File.ReadAllTextAsync(settingsPath), new JsonSerializerOptions(JsonSerializerDefaults.Web)) ?? throw new InvalidOperationException("无法读取 appsettings.json");
+        if (config.AdminPassword.Length < 12 || config.AdminPassword.Contains("replace-with", StringComparison.OrdinalIgnoreCase)) throw new InvalidOperationException("请在 appsettings.json 设置至少 12 位 AdminPassword。");
+        AppLog.Configure(config);
+        var store = new FileStore(config);
+        using var cancellation = new CancellationTokenSource();
+        Console.CancelKeyPress += (_, e) => { e.Cancel = true; cancellation.Cancel(); };
+        var api = new ApiServer(config, store);
+        var smtp = new SmtpServer(config, store);
+        var queue = new DeliveryQueue(config, store);
+        AppLog.Info($"中文邮箱服务正在启动，域名：{config.Domain}，主机名：{config.Hostname}");
+        await Task.WhenAll(api.RunAsync(cancellation.Token), smtp.RunAsync(cancellation.Token), queue.RunAsync(cancellation.Token));
+    }
+}