What server logs are critical to pull during a deliverability audit?
SMTP transaction logs:
- Connection attempts and results
- Server responses (codes and messages)
- Timing information
Bounce logs:
- Bounce codes and messages
- Timestamp and recipient
- Sending context
Authentication logs:
- DKIM signing events
- SPF lookup results
- Any errors or failures
Connection logs:
- TLS negotiation
- IP addresses used
- Connection timeouts or failures
ESP-specific logs:
- Event webhooks
- Delivery status notifications
- Engagement events
- Comprehensive logs enable accurate diagnosis.
- Ship logs, port records, and cargo manifests together tell the complete story.
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