Transactional emails are emails sent in response to an action initiated by the recipient, like an online purchase or a password recovery request. It’s a vital means of communication for every business. Such emails are usually sent via designated transactional email services. This article will explain the best such services to choose from.

1. UniOne

UniOne is an email marketing service that makes sending transactional messages as seamless as possible. It lets businesses send messages to customers in response to specific actions. For example, you can create an email template for every user who wants to reset their password on your site. This template will be automatically sent to every user who requests this action.

UniOne is a secure and reliable solution. It offers advanced security features to protect your customers’ data from unauthorized access. Its servers can process up to 60 million emails each hour, enough bandwidth to deliver messages on time to your customers. 

This platform offers an intuitive interface and is relatively affordable.

2. Mailchimp

Mailchimp is the world’s most popular email marketing platform. It offers a designated service for sending transactional emails. Mailchimp is very reliable and sends emails speedily. It has a robust infrastructure unrivaled by most competitors.

As usual, you can create message templates for different user actions. Mailchimp will automatically send the correct template when the user takes a corresponding action.

Mailchimp has an intuitive interface and many advanced features. It has an extensive library of third-party integrations to provide extra functionality. The drawback is that it’s relatively costly.

3. Postmark

Postmark is a platform designed solely for transactional messages. This platform is famous for its quick delivery and robust infrastructure to enable that. It aims to send most emails within 10 seconds from your request. 

Postmark is very customizable. It provides APIs you can connect to using different programming languages, e.g., PHP, Java, Node.Js, Ruby on Rails, etc. The setup is very easy; Postmark provides instructions you can easily follow.

The main drawback with Postmark is its high price, but the product is stellar and well worth it for organizations that can afford it.

4. SparkPost

SparkPost is an email delivery platform aimed at developers. It provides APIs to connect to its mail servers and send messages swiftly and reliably. SparkPost is siloed into the original SparkPost service hosted in North America and also into SparkPost EU hosted in Western Europe and designed to comply with GDPR laws. You can choose any of these two, but note that an account created with SparkPost can’t be used on SparkPost EU, and vice versa.

SparkPost can be difficult to master, especially for non-technical people. However, the platform provides extensive documentation and support resources to help users.

5. MailerSend

MailerSend is an effective transactional email delivery platform. It provides ready-made email templates that you can customize to fit your needs. If you have design skills, you can use the drag-and-drop editor to create your templates from scratch. 

MailerSend is easy to navigate and understand. It provides many complementary features, such as a tool for validating email lists and pruning invalid addresses.

6. Twilio SendGrid

SendGrid is an excellent email delivery platform. It’s an ideal solution for large businesses with many customers. It offers reliable and speedy delivery and has a modern, responsive interface that users can easily master. You can edit ready-made email templates or create yours from scratch with the drag-and-drop interface.

SendGrid offers extensive analytics, allowing users to monitor their delivery metrics in real time. SendGrid is a cost-effective solution for organizations sending bulk emails.