Best Transactional Email Software in 2026 · page 2
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Netcore Email API
Netcore Email API sends and tracks transactional and triggered messages, including password resets, order confirmations, notifications, and campaign sends.
Free planWebAPI6.3Free plan - 27
Emailit
WebAPI6.2From $20 a month - 28
Posta
Posta is a self-hosted email delivery platform for sending and receiving email through an HTTP API.
Free planWebAPISelf-hosted6.2Free plan - 29
QQueue
QQueue is a self-hosted email system that sends campaign, transactional, and manual messages through one SMTP-based pipeline.
Free planWebAPISelf-hosted6.2Free plan - 30
Sidemail
Web6.2From $2 a month - 31
Twilio Email API
Twilio Email API lets teams add transactional email to applications and cross-channel workflows through the Twilio Console.
Free planWebAPI6.2Free plan - 32
ZeptoMail
ZeptoMail, now Zoho CPaaS, is a paid email service built exclusively for transactional messages such as verification codes and password resets.
Free planWebAPI6.2Free plan - 33
JangoMail
WebAPI6.0 - 34
Retarus Transactional Email
Retarus Transactional Email sends high volumes of transactional emails from business applications through Retarus Enterprise Cloud.
WebAPI6.0 - 35
Amazon SES
WebAPI5.9 - 36
Sarv Transactional Email
WebAPI5.9 - 37
SendLayer
Web5.9From $5 a month - 38
JangoSMTP
WebAPI5.8 - 39
Mailgun
Mailgun is a web-based email service for sending and routing messages through RESTful email APIs and an SMTP relay.
Free planWeb5.8Free plan - 40
5.7 - 41
ClrStream
WebAPI5.5