Add project files.

Dockerfile

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+FROM mcr.microsoft.com/dotnet/sdk:10.0-bookworm-slim AS build
+WORKDIR /src
+
+COPY ["LiteCharmsMessaging/LiteCharmsMessaging.csproj", "LiteCharmsMessaging/"]
+RUN dotnet restore "LiteCharmsMessaging/LiteCharmsMessaging.csproj"
+
+COPY . .
+
+WORKDIR "/src/LiteCharmsMessaging"
+RUN dotnet build "LiteCharmsMessaging.csproj" -c Release -o /app/build
+RUN dotnet publish "LiteCharmsMessaging.csproj" -c Release -o /app/publish /p:UseAppHost=false
+
+FROM mcr.microsoft.com/dotnet/aspnet:10.0-bookworm-slim AS final
+WORKDIR /app
+
+COPY --from=build /app/publish .
+
+EXPOSE 8080
+
+ENTRYPOINT ["dotnet", "LiteCharmsMessaging.dll"]

LiteCharmsMessaging.slnx

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+<Solution>
+  <Project Path="LiteCharmsMessaging/LiteCharmsMessaging.csproj" />
+</Solution>

LiteCharmsMessaging/EmailRequest.cs

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+public sealed record EmailRequest(string HtmlBody, string? From, string? To);

LiteCharmsMessaging/LiteCharmsMessaging.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MailKit" Version="4.17.0" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.9" />
+    <PackageReference Include="Microsoft.OpenApi" Version="2.10.0" />
+  </ItemGroup>
+
+</Project>

LiteCharmsMessaging/Program.cs

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+using Microsoft.AspNetCore.Mvc;
+using MimeKit;
+using SmtpClient = MailKit.Net.Smtp.SmtpClient;
+
+var builder = WebApplication.CreateBuilder(args);
+
+var allowedOrigins = builder.Configuration.GetSection("CorsSettings:AllowedOrigins").Get<string[]>() ?? Array.Empty<string>();
+
+builder.Services.AddCors(options =>
+{
+    options.AddPolicy("AllowStrictOrigins", policy =>
+    {
+        policy.WithOrigins(allowedOrigins)
+              .AllowAnyHeader()
+              .AllowAnyMethod();
+    });
+});
+
+var app = builder.Build();
+
+app.UseCors("AllowStrictOrigins");
+
+app.MapPost("/api/send-email", async ([FromBody] EmailRequest request, IConfiguration config) =>
+{
+    try
+    {
+        var message = new MimeMessage();
+
+        var defaultFrom = config["SmtpSettings:DefaultFrom"];
+        var defaultTo = config["SmtpSettings:DefaultTo"];
+
+        var fromAddress = string.IsNullOrWhiteSpace(request.From) ? defaultFrom : request.From;
+        var toAddress = string.IsNullOrWhiteSpace(request.To) ? defaultTo : request.To;
+
+        message.From.Add(MailboxAddress.Parse(fromAddress!));
+        message.To.Add(MailboxAddress.Parse(toAddress!));
+        message.Subject = "New message from LiteCharms";
+
+        var bodyBuilder = new BodyBuilder { HtmlBody = request.HtmlBody };
+        message.Body = bodyBuilder.ToMessageBody();
+
+        using var client = new SmtpClient();
+
+        var host = config["SmtpSettings:Host"];
+        var port = config.GetValue<int>("SmtpSettings:Port");
+        var useSsl = config.GetValue<bool>("SmtpSettings:UseSsl");
+        var username = config["SmtpSettings:Username"];
+        var password = config["SmtpSettings:Password"];
+
+        await client.ConnectAsync(host!, port, useSsl);
+        await client.AuthenticateAsync(username!, password!);
+        await client.SendAsync(message);
+        await client.DisconnectAsync(true);
+
+        return Results.Ok(new { success = true, message = "Email dispatched successfully." });
+    }
+    catch (Exception ex)
+    {
+        return Results.Problem(detail: ex.Message, statusCode: 500);
+    }
+});
+
+app.Run();

LiteCharmsMessaging/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5295",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "https://localhost:7212;http://localhost:5295",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

LiteCharmsMessaging/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "SmtpSettings": {
+    "Host": "mail.litecharms.co.za",
+    "Port": 465,
+    "UseSsl": true,
+    "Username": "contact@litecharms.co.za",
+    "Password": "YPPUzCl%TL$GD*x7f",
+    "DefaultFrom": "LiteCharms <contact@khongisa.co.za>",
+    "DefaultTo": "contact@litecharms.co.za"
+  },
+  "CorsSettings": {
+    "AllowedOrigins": [
+      "https://litecharms.co.za",
+      "https://www.litecharms.co.za",
+      "https://localhost:7212",
+      "http://localhost:5295"
+    ]
+  }
+}

docker-compose.yml

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+services:
+  api:
+    container_name: litecharms-messaging-api
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    ports:
+      - "8090:8080"
+    environment:
+      - ASPNETCORE_ENVIRONMENT=${ASPNETCORE_ENVIRONMENT}
+      - SmtpSettings__Password=${SMTP_PASSWORD}