Postmark loves .NET

Send your transactional emails to customers on time, every time

5 Minute Set Up

1

Install the Postmark.NET library from NuGet

PM> Install-Package Postmark
2

Send an email asynchronously

// Import:
using PostmarkDotNet;

// Send an email asynchronously:
var message = new PostmarkMessage()
{
  To = "sender@example.com",
  From = "recipient@example.com",
  TrackOpens = true,
  Subject = "A complex email",
  TextBody = "Plain Text Body",
  HtmlBody = "HTML goes here",
  Tag = "New Year's Email Campaign",
  Headers = new HeaderCollection{
    {"X-CUSTOM-HEADER", "Header content"}
  }
};

var client = new PostmarkClient("POSTMARK-SERVER-API-TOKEN-HERE")
var sendResult = await client.SendMessageAsync(message);

if (sendResult.Status == PostmarkStatus.Success){ /* Handle success */ }
else { /* Resolve issue.*/ }

Want to test our APIs and activity logging? Send emails to test@blackhole.postmarkapp.com

3

Once you’ve sent your first email, check out the .NET library docs →

Check out what some of our customers have said

We were using one of your competitors because they featured a freemium plan. However we were getting complaints on a weekly basis that emails weren’t reaching clients. […] Other than an edge case here or there, since switching to Postmark, our support tickets regarding email delivery have plummeted to zero. That alone makes Postmark worth its weight in gold.

Kyle Racki

Kyle Racki

CEO at Proposify

We‘ve grown from sending 0 to 200,000 transactional emails daily, and Postmark helped us a lot with scaling that process.

Bartosz Olchówka

Bartosz Olchówka

Head of Development at LiveChat

I’ve used SendGrid, Mandrill and Postmark for transactional email in production. Amazing how much better Postmark is than everyone else.

Andreas Zecher

Andreas Zecher

Founder and Developer at Promoter

We use Postmark and are very happy with it. Switched from SendGrid due to security problems, dodgy UI, and not storing email content.

Jonny Paylor

Jonny Paylor

via Twitter

From side projects to Fortune 500...

We’ve got you covered. We process transactional email for companies of all sizes:

Everything you need for first class email delivery

A comprehensive suite of tools to help you seamlessly integrate email with your .NET application.

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    We’re focused on building the best reputation in the industry for transactional email.

  • One credit equals one email.

    Simple and transparent pricing means you only pay for what you use.

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    Easy-to-use, responsive email templates for sending welcome emails, password resets, and more.

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    Increased visibility with detailed open and delivery tracking for every email.

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    A robust developer API to tightly integrate your app with Postmark.

  • Envelope flying into postbox.

    Industry-leading delivery speeds. Up to 4x faster than other providers.

Lightning fast delivery

Your customers expect emails to arrive immediately—not eventually. We constantly
monitor our delivery speeds and share the data publicly.

  • Gmail

  • Apple

  • Hotmail

  • AOL

  • Yahoo

Time to Inbox data updated every 5 minutes

Ready to get started?

Join thousands of developers that already trust their email delivery to Postmark.

Try Postmark Free No Credit Card Required
Any questions? Call Marek at 1-855-286-7373