Sinch Mailgun (formerly Mailgun) offers a robust email API, SMTP relay, and analytics platform for developers and marketers to send, track, and optimize transactional and bulk email. Looking for other email delivery, data‑rich SMTP, or API‑first solutions? Below is a curated list of 20 alternatives you can evaluate.
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Scalable cloud‑based email delivery service with powerful APIs, real‑time analytics, and a drag‑and‑drop UI for marketing campaigns.
Highly cost‑effective email sending service from AWS, offering SMTP interface, API, and deep integration with other AWS services.
Enterprise‑grade email delivery platform with predictive analytics, webhook events, and a robust RESTful API.
Focused on transactional email with fast delivery, detailed message events, and a simple API for developers.
All‑in‑one email solution offering SMTP relay, API, and collaborative email builder for both transactional and marketing emails.
Marketing automation platform that also provides SMTP relay, transactional email API, and SMS capabilities.
High‑volume email delivery service with SMTP, REST API, and built‑in email validation and analytics.
Dedicated SMTP relay service offering high deliverability, detailed logs, and API access for transactional email.
Email testing sandbox that also provides a safe SMTP relay for development and staging environments.
Email delivery platform with SMTP relay, API, and deliverability consulting for transactional and bulk email.
Transactional email service from Mailchimp, offering SMTP, API, and powerful template management.
Marketing automation suite that includes a transactional email API and SMTP relay with real‑time reporting.
Developer‑friendly email delivery service with SMTP, REST API, and AI‑driven deliverability monitoring.
Modern transactional email service built on the MailerLite platform, offering API, SMTP, and analytics.
Lightweight SMTP relay and API service focused on simplicity, fast delivery, and detailed event webhooks.
Open‑source email delivery platform with API, SMTP, and built‑in analytics for transactional messaging.
Transactional email add‑on to the MailerLite suite, providing SMTP, API, and template management.
Email filtering and delivery service that also offers SMTP relay and API for high‑volume senders.
Industry‑standard email API and SMTP service known for powerful deliverability tools and detailed logs.
Multichannel marketing platform with SMTP relay, API, and built‑in email automation features.