---
description: Discover the most popular Free Transactional Email Software tools and compare user ratings, pricing, features, and free demo versions.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/getapp/og_logo-94fd2a03a6c7a0e54fc0c9e21a1c0ce9.png
title: Top Free Transactional Email Software Applications and Tools | GetApp UK 2026
---

Breadcrumb: [Home](/) > [Free Transactional Email Software](https://www.getapp.co.uk/directory/1707/transactional-email/software)

# Transactional Email Software

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## Products

1. [Mailgun](https://www.getapp.co.uk/software/101687/mailgun) — 4.3/5 (197 reviews) — Transactional email API service for developers
2. [ClickSend](https://www.getapp.co.uk/software/2057523/clicksend) — 4.3/5 (93 reviews) — Business Communications. Solved
3. [InboxAlly](https://www.getapp.co.uk/software/2051883/inboxally) — 4.8/5 (6 reviews) — InboxAlly is the Ultimate Email Deliverability Tool\!
4. [Enabler](https://www.getapp.co.uk/software/109853/enabler) — 3.7/5 (3 reviews) — Enterprise-level email marketing software
5. [Mailchimp](https://www.getapp.co.uk/software/8268/mailchimp) — 4.5/5 (17572 reviews) — Email and SMS marketing automation platform
6. [Constant Contact](https://www.getapp.co.uk/software/90578/constant-contact) — 4.3/5 (2913 reviews) — Streamlines marketing to grow loyal audiences
7. [SendPulse](https://www.getapp.co.uk/software/104173/sendpulse) — 4.6/5 (772 reviews) — Email, web push, SMS, chatbots, CRM on one platform
8. [SendGrid](https://www.getapp.co.uk/software/20507/sendgrid) — 4.2/5 (752 reviews) — Delivers reliable email at scale for businesses
9. [GetResponse](https://www.getapp.co.uk/software/20440/getresponse) — 4.2/5 (521 reviews) — Cloud-based email marketing platform
10. [Campaign Monitor by Marigold](https://www.getapp.co.uk/software/90842/campaign-monitor) — 4.5/5 (505 reviews) — Cross-channel marketing made simple and stress-free
11. [Mailjet](https://www.getapp.co.uk/software/20515/mailjet) — 4.2/5 (451 reviews) — Marketing Email, Transactional Email, Transactional SMS
12. [Campaigner](https://www.getapp.co.uk/software/2060721/campaigner-1) — 3.9/5 (428 reviews) — Powerful Email Marketing \& Automation platform
13. [Referrizer](https://www.getapp.co.uk/software/2049711/referral-marketing-automation) — 4.8/5 (196 reviews) — Lead management and marketing automation software.
14. [SMTP2GO](https://www.getapp.co.uk/software/119247/smtp2go) — 4.9/5 (178 reviews) — Fast, reliable mail delivery and management solution
15. [Acumbamail](https://www.getapp.co.uk/software/2051693/acumbamail) — 4.6/5 (155 reviews) — Cloud-based tool for email and SMS marketing campaigns
16. [MailUp](https://www.getapp.co.uk/software/101395/mailup) — 4.4/5 (94 reviews) — Email, SMS and Messaging Apps marketing solution
17. [emBlue](https://www.getapp.co.uk/software/2061916/emblue) — 4.4/5 (91 reviews) — Integrate channels, become omnichannel
18. [ReachMail](https://www.getapp.co.uk/software/114129/reachmail) — 4.6/5 (70 reviews) — Web-based email message creation and campaign marketing tool
19. [Inxmail](https://www.getapp.co.uk/software/162495/inxmail) — 4.2/5 (64 reviews) — Email marketing software to create newsletters \& emails
20. [MailerSend](https://www.getapp.co.uk/software/2051219/mailersend) — 4.4/5 (59 reviews) — Transactional messaging service built for the whole team
21. [UniOne](https://www.getapp.co.uk/software/2062926/unione) — 4.7/5 (59 reviews) — Friendly Email API and SMTP service
22. [MDirector](https://www.getapp.co.uk/software/2064326/mdirector) — 4.5/5 (49 reviews) — All-in-One Digital Marketing Platform
23. [Ongage](https://www.getapp.co.uk/software/2046239/ongage) — 4.8/5 (38 reviews) — An email marketing platform for high-volume email operations
24. [NeoRed](https://www.getapp.co.uk/software/2057527/neored) — 4.8/5 (36 reviews) — Emails that achieve
25. [SparkPost](https://www.getapp.co.uk/software/123871/sparkpost) — 3.7/5 (35 reviews) — Predictive email intelligence solution with analytics

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## Related Categories

- [Mobile Marketing Software](https://www.getapp.co.uk/directory/309/mobile-marketing/software)
- [Campaign Management Software](https://www.getapp.co.uk/directory/304/campaign-management/software)
- [Email Marketing Software](https://www.getapp.co.uk/directory/307/email-marketing/software)
- [All-in-One Marketing Platform Software](https://www.getapp.co.uk/directory/310/online-marketing/software)
- [Email Management Software](https://www.getapp.co.uk/directory/306/email-management/software)

## Links

- [View on GetApp](https://www.getapp.co.uk/directory/1707/transactional-email/software)
- [All Categories](https://www.getapp.co.uk/directory)

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