Transactional emails service

Millions of messages per hour. Outstanding deliverability. User-friendly API.

Transactional emails service

We send up to 60 million emails per hour

Transactional emails help you react to your subscribers’ actions immediately to prove you are there for them exactly when they need you.

We deliver 99,8% of messages straight to the inbox

  • Forget about spam folder issues — we make sure your email lands where it should be.

We make transactional emails easy

We’ll run them smoothly so you could focus on more important things

Start fast with SMTP

Send emails via SMTP API to start right away. Integrate in less than 2 minutes. Up to 5 000 messages per hour.


Play big with Web API

Up to 60 million emails per hour. Create templates, manage unsubscribes and get stats through webhooks with Web API.


Visual dashboard

A convenient overview of the most important metrics: delivery, opens, clicks, unsubscribes.

Full support and protection

All along your journey
  • Selzy

    Get help 24/7

    We are available for immediate assistance exactly when you need us, via: email, on the phone, or in chat.

  • Selzy

    Data protection

    Your customers’ data is stored on your servers. No third-party access.

Get notified about your most important changes

Be in control of what’s happening

When it’s time to renew your subscription or your domain settings have changed, we will notify you. Set up notifications to several emails — your IT department will get all the technical info, and the campaign stats will go to your marketing department.

Be in control of what’s happening

Send like a pro from the start


Easy onboarding

We’ll help you make a smooth transition from another service, set up the servers, and test your campaigns.


Regular stats updates

No need to always monitor the dashboard — get the reports straight to your email.


Personalized tips

If your performance is lower than expected, we will recommend what you can do to improve your results.


50,000+ customers can't be wrong...

Selzy is the easiest way to start selling with email. But don't just take our word for it, here's what our clients say

4.8 / 5
Selling with emails
based on 500+ reviews
There’s more

Learn how we helped other businesses meet their goals. See more reviews on

Selzy Selzy Selzy Selzy


What are transactional emails?


They are automated messages sent to subscribers based on their particular actions and contain important information. Notifications, reminders, and other messages accompanying purchases are examples of transactional messages.

How do I start sending transactional emails?


You need to integrate our service with your CRM and website. Register with our service, confirm your email, and set up email authentication (SPF, DKIM). Follow our guide to connect to our Web API. If you need help, we’re available 24/7.

What is the difference between transactional and regular emails?


Regular email campaigns boost sales and customer loyalty and are usually sent manually.Transactional emails are sent automatically to confirm a user’s action on the website or to communicate order details. Customers open these messages more frequently because they initiate them by their actions. That’s why such messages should arrive fast and straight into the inbox.

Can I personalize transactional emails?


Yes, you can. You can make your notifications more personalized by adding any fields you have in your base: name, last purchase, interests, location, and even a pet’s name. Find out more about personalization.

What’s the fee for sending transactional emails?


Sending up to 6000 emails per month is free for the first 4 months. To work with bigger volumes, make a rough estimate of your email volumes per month and choose the plan that suits your business best. Find out more about our pricing plans.

Deliver your most important messages straight to the inbox

Send fast with API or SMTP
Start for free