A Transactional Email is one which is sent to a specific user in response to an action taken by the user. Although it is often related to a transaction such as an online order, it can also be related to other user actions such as registration on a company's portal, download of a whitepaper from a website, providing feedback using a web form etc. The products and technologies under this category provide a service or an API that can be integrated within an application to enable you to reliably send transactional emails.
At enlyft, we use sophisticated, patent-pending algorithms to track the use of various Transactional Email products and technologies. We track 28 products in the Transactional Email category, and have found 2,161,826 companies using these products.
| Product |
Install base
# of companies we found using this product |
Market Share |
|---|---|---|
| SendGrid | 575,168 | 26% |
| Rackspace Mailgun | 362,490 | 16% |
| Amazon SES | 263,774 | 12% |
| Mandrill | 255,793 | 11% |
| MailJet | 182,379 | 8% |
| SendinBlue | 173,370 | 8% |
| Postmark | 108,397 | < 5% |
| Elastic Email | 101,022 | < 5% |
| MailerSend | 28,242 | < 5% |
| SparkPost | 28,005 | < 5% |
| turboSMTP | 17,737 | < 5% |
| AuthSMTP | 15,863 | < 5% |
| Acymailing | 13,120 | < 5% |
| MailUp | 12,435 | < 5% |
| SocketLabs | 6,081 | < 5% |
| Avis Verifies | 5,904 | < 5% |
| Alibaba Cloud DirectMail | 2,574 | < 5% |
| Customer.io | 2,150 | < 5% |
| SMTP Express | 2,073 | < 5% |
| MessageGears | 1,678 | < 5% |
| Tipimail | 1,496 | < 5% |
| Experian CheetahMail | 722 | < 5% |
| Pepipost | 577 | < 5% |
| CritSend | 312 | < 5% |
| PostageApp | 236 | < 5% |
| Retarus | 187 | < 5% |
| Upaknee | 38 | < 5% |
| ExpressPigeon | 3 | < 5% |