Best Transactional Email Software in 2026
36 transactional email software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
36ranked
21free plans on this page
$5/molowest paid tier
2 Oct 2026last checked
#1 Postmark Top pick · 9.2 Free plan · $5/mo
#2 MailerSend Runner-up · 8.8 Free plan · $5.60/mo
#3 Reloop Also great · 8.5 Free plan · $10/mo
- Free planFree trial apiWeb
- Free plan
- Yes
- Paid from
- 15 /mo
RecognisedDocumentedFree planFree trialPlatforms$5/mofirst paid tier About PostmarkVisit site - Free planFree trial apiiOSWeb
- Free plan
- Yes
- Paid from
- 7 /mo
RecognisedDocumentedFree planFree trialPlatforms$5.60/mofirst paid tier About MailerSendVisit site - Free plan self-hosted
- Free plan
- Yes
- Paid from
- 10 /mo
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
- Delivery log retention
- 45 days
RecognisedDocumentedFree planFree trialPlatforms$10/mofirst paid tier About ReloopVisit site - Free planFree trialRecognisedDocumentedFree planFree trialPlatforms$19.95/mofirst paid tier About Twilio SendGridVisit site
- Free plan apiWeb
- Free plan
- Yes
- Paid from
- 10 /mo
RecognisedDocumentedFree planFree trialPlatforms$10/mofirst paid tier About MailerooVisit site - Free planFree trial Web
- Free plan
- No
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
- Delivery log retention
- 30 days
RecognisedDocumentedFree planFree trialPlatforms$10/mofirst paid tier About Mailchimp Transactional (formerly Mandrill)Visit site - Free plan apiWeb
- Free plan
- Yes
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
- Delivery log retention
- 30 days
RecognisedDocumentedFree planFree trialPlatforms€10/mofirst paid tier About NuntlyVisit site - Free plan Web
- Free plan
- Yes
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms€30/mofirst paid tier About Hyvor RelayVisit site - Free plan self-hosted
- Free plan
- Yes
- Paid from
- 20 /mo
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
- Delivery log retention
- 15 days
RecognisedDocumentedFree planFree trialPlatforms$20/mofirst paid tier About PosthawkVisit site - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 10 /mo
RecognisedDocumentedFree planFree trialPlatforms$8.33/mofirst paid tier About SMTP2GOVisit site - Free plan Web
- Free plan
- Yes
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms€14.95/mofirst paid tier About turboSMTPVisit site - Free plan Web
- Free plan
- Yes
- Paid from
- 20 /mo
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Paid from
- 10 /mo
- Delivery methods
- api
- Template options
- code
RecognisedDocumentedFree planFree trialPlatforms$10/mofirst paid tier About MailmarkVisit site - Free planRecognisedDocumentedFree planFree trialPlatforms
- Free trial apiWeb
- Delivery methods
- both
- Event webhooks
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Paid from
- 8 /mo
RecognisedDocumentedFree planFree trialPlatforms$8/mofirst paid tier About ReachMailVisit site - Free plan WebiOSAndroid
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms$20/mofirst paid tier About Resend BroadcastsVisit site - Web
- Delivery methods
- both
- Template options
- both
- Event webhooks
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
- Paid from
- 5 /mo
- Delivery methods
- both
- Template options
- code
- Event webhooks
- Yes
- Delivery log retention
- 3 days
RecognisedDocumentedFree planFree trialPlatforms$5/mofirst paid tier About SendLayerVisit site
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which transactional email software is ranked first on The Geeks Club?
Postmark is ranked #1 of 36 with a score of 9.2. MailerSend is second and Reloop third.
How many of these have a free plan?
21 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Postmark has the lowest first paid tier we found: $5/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.
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