UniOne Email API Alternatives (January 2026)
UniOne is a transactional email service: you can send Transactional Emails simple and cheap with the help of platform API Email UniOne.
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1.
Transactional Email API Service For Developers | Mailgun
https://www.mailgu
.com/
2.
Email Marketing Software. Mail Delivery API | Elastic Email
https://elasticemai
.com/
3.
Transactional Emails Made Easy. API and SMTP Relay Sending.
https://jangosmt
.com/
4.
SendPost Transactional Email API & SMTP Relay
https://app.sendpos
.io/
5.
Lightning fast email delivery powered by AI | SMTP & Email API
https://mailaz
.com/
6.
HandySends SendGrid Email API Transactional Email Service
https://www.mailmod
.com/resources/transactional-email-services/handysends-sendgrid-email-api/
7.
Transactional email service: Send 10K emails for free | Zoho ZeptoMail
https://www.zoh
.com/zeptomail/
8.
Email Sending Service
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MailerSend
https://www.mailersen
.com/
9.
SMTPServer: Send Unlimited Emails | Email Delivery Service
https://smtpserve
.com/