diff --git a/API/ROLAC.API/ROLAC.API.csproj b/API/ROLAC.API/ROLAC.API.csproj
index 239c488..322deb9 100644
--- a/API/ROLAC.API/ROLAC.API.csproj
+++ b/API/ROLAC.API/ROLAC.API.csproj
@@ -12,6 +12,7 @@
 		     Provides DevExpress.Drawing.v24.1.Skia.dll; without it RichEditDocumentServer
 		     throws DllNotFoundException at runtime on Linux (Windows falls back to GDI+). -->
 		<PackageReference Include="DevExpress.Drawing.Skia" Version="24.1.3" />
+		<PackageReference Include="MailKit" Version="4.8.0" />
 		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.11" />
 		<PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.11" />
 
diff --git a/API/ROLAC.API/Services/Notifications/NotificationOptions.cs b/API/ROLAC.API/Services/Notifications/NotificationOptions.cs
new file mode 100644
index 0000000..ab6e8f0
--- /dev/null
+++ b/API/ROLAC.API/Services/Notifications/NotificationOptions.cs
@@ -0,0 +1,20 @@
+namespace ROLAC.API.Services.Notifications;
+
+/// <summary>SMTP transport settings (bound from the "Smtp" config section).</summary>
+public sealed class SmtpOptions
+{
+    public string Host        { get; set; } = "";
+    public int    Port        { get; set; } = 587;
+    public bool   UseSsl      { get; set; } = true;   // true → STARTTLS
+    public string User        { get; set; } = "";
+    public string Password    { get; set; } = "";
+    public string FromAddress { get; set; } = "";
+    public string FromName    { get; set; } = "";
+}
+
+/// <summary>Line Messaging API settings (bound from the "Line" config section).</summary>
+public sealed class LineOptions
+{
+    public string ChannelAccessToken { get; set; } = "";
+    public string ChannelSecret      { get; set; } = "";
+}