Pool Features
Health Monitoring
Continuous monitoring ensures only healthy SMTPs are used for your campaigns.
What We Monitor
- Delivery Rate: Percentage of emails successfully delivered
- Bounce Rate: Hard and soft bounces tracked separately
- Response Time: SMTP server response latency
- Connection Success: TLS handshake and auth success rates
- Blacklist Status: Checked against major DNSBLs
Automatic Actions
| Condition | Action |
|---|---|
| Health score drops below 70 | Removed from active pool |
| Connection failures > 5% | Deprioritized in rotation |
| Blacklist detected | Immediately quarantined |
| Health recovers above 80 | Gradually reintroduced |