Best Transactional Email for Shopify in 2026

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Delivery service that sends and tracks email over SMTP or an API, with offices in Christchurch, Melbourne, London and Atlanta.