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Transactional Email

MailChannels alternatives

Ranked by how many scanned sites use each. Once we see sites drop MailChannels, where they go next ranks first.

MailChannels40 sites, 0 in the last 90 days, paid

Outbound SMTP relay that web hosts put behind their customers' mail.

15 alternatives to MailChannels

Growth is sites that added it minus confirmed removals in the last 90 days.

1

Amazon SES3,650 sites, +2 in 90 days, paid

Amazon's cloud email service for sending and receiving mail, billed pay-as-you-go with no contract or upfront commitment.

2

Resend2,378 sites, +1 in 90 days, freemium

Sending API built for developers, covering transactional and marketing mail.

3

Twilio SendGrid2,076 sites, 0 in 90 days, freemium

Twilio-owned email API and marketing platform, sold separately from the Twilio Email product in Twilio's Console.

4

Brevo (Sendinblue)1,019 sites, 0 in 90 days, freemium

Formerly Sendinblue, an email marketing platform whose plans also cover transactional sending.

5

Mailgun973 sites, 0 in 90 days, freemium

Developer email API that places each sending domain in a US or an EU region, chosen when the domain is added.

6

Mailchimp Transactional (Mandrill)943 sites, 0 in 90 days, paid

Formerly Mandrill, the transactional email add-on that Mailchimp renamed in fall 2025.

7

MailerSend651 sites, +1 in 90 days, freemium

Built by the MailerLite team, a transactional email service with a plan for agencies and SMS in the US and Canada.

8

Mailjet619 sites, 0 in 90 days, freemium

Campaign and transactional email on one platform, owned by Sinch.

9

Mailtrap Email Sending450 sites, 0 in 90 days, freemium

Transactional email API and SMTP service, sold beside a sandbox for catching test mail.

10

SparkPost (Bird)444 sites, 0 in 90 days, paid

Bird's email API for transactional and marketing mail, which SparkPost has become.

11

MailPace420 sites, 0 in 90 days, paid

EU-hosted transactional email API aimed at password resets and one-time codes.

12

Postal419 sites, 0 in 90 days, open-source

Self-hosted mail server for application email, released under the MIT licence.

13

Postmark80 sites, 0 in 90 days, paid

Service for transactional email that says it has been delivering mail since 2010.

14

Elastic Email40 sites, 0 in 90 days, freemium

Email API and SMTP relay for developers, from a company that traces its start to 2010.

15

Customer.io24 sites, +1 in 90 days, paid

Behaviour-triggered email and messaging for onboarding and activating the users of a software product.