Prompt
Do email APIs provide delivery logs?
Latest observation
Sep 23, 2026
OpenAI APIWeb search: off
Yes—many email APIs provide delivery logs, but what they include varies by provider.
Typical log data can include:
- Accepted/sent status
- Delivered status
- Bounced messages
- Deferred/queued attempts
- Opened/clicked events
- Spam complaints / unsubscribes
- SMTP response codes or error details
A few important caveats:
- “Delivered” usually means accepted by the recipient’s mail server, not necessarily that the user saw it.
- Open/click tracking depends on tracking being enabled and can be inaccurate due to privacy features.
- Some providers only offer logs for a limited retention period unless you export them.
Examples:
- SendGrid: event webhooks and event logs
- Mailgun: events and logs
- Amazon SES: delivery/bounce/complaint notifications via SNS/CloudWatch
- Postmark: detailed message activity and webhooks
- Mandrill/Mailchimp Transactional: detailed activity logs
If you want, I can compare delivery-log capabilities across specific email APIs.