.NET

Learn how to integrate Mailtrap with .NET apps and projects for email sending using SDK, SMTP, or RESTful API.

Overview

Mailtrap can be integrated with .NET apps and projects for email sending.

Email API/SMTP for .NET

SDK integration

The Mailtrap .NET SDK is a modern, async-first library for sending transactional and bulk emails from .NET applications. The SDK supports:

Transactional email sending
Batch email sending
Template management
Contact management
Sandbox testing
Account management
Async/await pattern support
.NET 6+, .NET Core, and .NET Framework

Installation

Install the SDK using NuGet Package Manager:

.NET CLI

dotnet nuget add source https://nuget.pkg.github.com/mailtrap/index.json --name github-mailtrap --username GITHUB_USERNAME --password GITHUB_PAT --store-password-in-clear-text
dotnet add package Mailtrap -v 3.0.0 -s github-mailtrap

Minimal Example

Here's a minimal example to send your first email:

Program.cs

using Mailtrap;
using Mailtrap.Emails.Models;
using Mailtrap.Emails.Requests;

using var mailtrapClientFactory = new MailtrapClientFactory("YOUR_API_KEY");
var client = mailtrapClientFactory.CreateClient();

var mail = new SendEmailRequest
{
      From = new EmailAddress("[email protected]"),
      To = new[] { new EmailAddress("[email protected]") },
      Subject = "Hello from Mailtrap",
      TextBody = "Welcome to Mailtrap Email API!"
};

await client.Email().Send(mail);

Get your API token from your Mailtrap account under Settings → API Tokens.

SMTP integration

To integrate SMTP with your .NET app, navigate to the Integrations tab, choose C#, and copy-paste the credentials or ready-made code snippets.

SMTP integration is compatible with any .NET programming language or library that sends emails via SMTP.

RESTful API integration

To integrate Mailtrap using RESTful API, use the configuration available among Code samples under the API section.

API integration can be used with any .NET programming language or library that supports HTTP requests. For more details, refer to the API documentation.