# Transactional email APIs

12 apps ranked by verified data.
Source: https://altcatalog.com/category/transactional-email/

## Apps

- [Amazon SES](https://altcatalog.com/alternatives/amazon-ses.md) — Scalable, low-cost email sending from AWS
- [Elastic Email](https://altcatalog.com/alternatives/elastic-email.md) — Transactional and bulk email API/SMTP provider with templates, contact management, and del
- [MailerSend](https://altcatalog.com/alternatives/mailersend.md) — Transactional email API and SMTP relay from the team behind MailerLite, with inbound routi
- [Mailgun](https://altcatalog.com/alternatives/mailgun.md) — Email API and deliverability platform for developers
- [Mailtrap](https://altcatalog.com/alternatives/mailtrap.md) — Email delivery platform with a dedicated sending API/SMTP and a separate email testing san
- [Postal](https://altcatalog.com/alternatives/postal.md) — Open-source, self-hosted mail delivery platform with a REST API, comparable to Mailgun or
- [Postmark](https://altcatalog.com/alternatives/postmark.md) — Fast, reliable transactional email delivery
- [Resend](https://altcatalog.com/alternatives/resend.md) — Email API for developers with a modern DX
- [SMTP2GO](https://altcatalog.com/alternatives/smtp2go.md) — Global SMTP relay and email API service with multi-datacenter redundancy and delivery repo
- [Twilio SendGrid](https://altcatalog.com/alternatives/sendgrid.md) — High-volume email API and delivery platform
- [useSend](https://altcatalog.com/alternatives/usesend.md) — Open-source transactional email API and SMTP relay positioned as an alternative to Resend,
- [Zoho ZeptoMail](https://altcatalog.com/alternatives/zeptomail.md) — Zoho's dedicated transactional email API and SMTP relay with real-time tracking

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/