Prompt
What's a good replacement for SMTP plus a bunch of custom logging?
Latest observation
Sep 23, 2026
OpenAI APIWeb search: off
A good modern replacement is usually:
An email delivery provider/API plus structured app logging/observability
instead of raw SMTP + custom logs.
Good options for email delivery
- Postmark — excellent for transactional email, simple API, strong delivery reputation
- SendGrid — broad features, flexible, common choice
- Mailgun — good APIs, decent for both transactional and bulk
- Amazon SES — cheap and scalable, but more DIY
- Mailjet / Brevo — simpler all-in-one options
What to use instead of custom SMTP logging
Use:
- Structured logs in your app
- Event tracking/webhooks from the email provider
- Centralized observability tools like:
- Datadog
- Grafana/Loki
- Elastic/ELK
- OpenTelemetry + your log backend
- Sentry for error tracing
Best practical replacement pattern
- Send email via provider API
Avoid direct SMTP if you can. - Capture delivery events via webhooks
Track delivered, bounced, deferred, opened, clicked, complaint. - Log one correlation ID per message
Store message ID, user ID, template name, provider response. - Use a queue for sending
Improves retry handling and reliability. - Alert on failures
Use your monitoring stack instead of ad hoc logs.
If you want a simple recommendation
- Transactional email: Postmark + webhook-based event tracking
- Cheaper/high-volume: Amazon SES + structured logging + queue
- All-around flexible: SendGrid + observability stack
If you tell me whether this is for transactional email, marketing email, or both, I can recommend a best-fit setup.