Prompt
What are reliable options for sending transactional email with API access and delivery logs?
Latest observation
Jul 24, 2026 · OpenAI APIWeb search: off
Reliable transactional email providers with API access and delivery logs include:
- SendGrid — solid API, detailed event webhooks, message activity logs, templates, and good scalability.
- Mailgun — strong developer-focused API, searchable logs, routing, and webhooks for delivered/opened/bounced events.
- Postmark — excellent for transactional email specifically, very clean API, strong delivery tracking, and very good reputation.
- Amazon SES — very cost-effective, reliable at scale, integrates with AWS services, supports event publishing/logging, but setup is more technical.
- SparkPost — strong analytics and event data, API-first, good deliverability tools.
- Brevo (Sendinblue) — API support and event tracking, easier to use for smaller teams.
- Mailjet — API plus message/event tracking, decent for transactional use.
- Resend — modern API, simple developer experience, logs/events, good for product apps.
What to look for:
- API for sending and querying message status
- Webhooks/event logs for delivered, bounced, complained, deferred events
- Message search/history in dashboard
- Dedicated IPs or domain authentication if volume is high
- Suppression lists and bounce handling
- Templates if you want managed transactional content
If you want, I can also narrow this down by:
- best deliverability,
- lowest cost, or
- easiest API for developers.