How do ESPs communicate delivery issues to users?

ESPs use multiple channels to inform users about delivery problems, from real-time alerts to periodic reports.

Dashboard indicators:

Real-time metrics showing delivery rates, bounces, complaints

Alerts for threshold breaches (bounce rate too high)

Status indicators for IP/domain health

Campaign-level delivery statistics

Email notifications:

Alerts for critical issues (blocklist, account problems)

Periodic summary reports

Specific campaign completion reports

Webhooks:

Real-time events for bounces, complaints, deferrals

Enable automated response to issues

Integrate with your monitoring systems

Aggregate reports:

Daily/weekly summaries

Trend analysis over time

Domain-level breakdowns

Account warnings:

Notifications when approaching limits or violations

Required action warnings for serious issues

Suspension notices with remediation requirements

Best practices for users:

Configure alert thresholds appropriate for your program

Set up webhooks for real-time visibility

Review dashboards regularly, not just when problems occur

Ensure notification emails reach the right people

Don't ignore warnings; they often precede more serious actions

Proactive monitoring catches issues before they become crises.