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The Paubox C# SDK is the official .NET client library for the Paubox Email API and Paubox Forms. It provides a strongly-typed interface for sending encrypted email, managing dynamic templates, tracking delivery, and submitting forms.

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Installation

The SDK is distributed as a compiled DLL. Download or clone the repository, then add a reference to lib/Paubox.Email.API.dll in your project. Visual Studio: Right-click your project → Add → Reference → Browse → select Paubox.Email.API.dll. .csproj file: 
<ItemGroup>
  <Reference Include="Paubox.Email.API">
    <HintPath>path\to\Paubox.Email.API.dll</HintPath>
  </Reference>
</ItemGroup>

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What you can do

  • Send encrypted, HIPAA-compliant email to one or more recipients
  • Send batches of up to 50 messages in a single API call
  • Create, update, and delete dynamic Handlebars templates
  • Send templated messages with per-message variable substitution
  • Track delivery status and engagement per recipient
  • Retrieve Paubox Form schemas and submit form responses with file attachments

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Requirements

  • .NET 8.0 or later (.NET 9.0 also supported)

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Dependency injection

The SDK ships with IEmailLibrary and IFormsLibrary interfaces, making it straightforward to register the clients in an ASP.NET Core DI container and mock them in tests.

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Get started

Quickstart

Add the DLL, configure credentials, and send your first email in minutes.

Authentication

Configure via constructor params or appsettings.json.

Email client

Full reference for sending email, managing templates, and tracking delivery.

Forms client

Retrieve form schemas and submit responses.