Real-time email delivery metrics across major providers
Last updated: Jul 11, 2025 12:15 AM PDT
Current ESP Status
| Provider | P95 Latency (s) | Retry Rate | Trend | Status | Details |
|---|---|---|---|---|---|
| Apple iCloud | 3.10 | 2.1% | ▲ | Degraded | View Details |
| Comcast / Xfinity | 1.25 | 6.2% | ▬ | Degraded | View Details |
| GMX / WEB.de | 1.86 | 0.0% | ▬ | Healthy | View Details |
| Google Mail | 0.81 | 3.9% | ▲ | Healthy | View Details |
| Microsoft 365 | 1.20 | 0.2% | ▼ | Healthy | View Details |
| Outlook / Hotmail | 1.54 | 0.0% | ▬ | Healthy | View Details |
| Spectrum / Charter | 0.33 | 88.6% | ▲ | Issues | View Details |
| Yahoo / AOL | 1.44 | 0.0% | ▬ | Healthy | View Details |
Details for Spectrum / Charter
← Back to OverviewP95 Latency (24 hours)
Delivery Issues (24 hours)
Retry and Bounce RatesAbout this data
- The numbers on this page come from SMTP telemetry that Groups.io collects each day.
- Latency measures the time from the start of the connection until we receive the server's response to the DATA command.
- Metrics are updated every five minutes and down-sampled into 5-minute buckets; raw data older than seven days is automatically purged, and roll-ups are kept for 90 days.
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