Real-time email delivery metrics across major providers
Última atualização: Nov 4, 2026 7:15 AM PST
Current ESP Status
| Provedor | P95 Latency (s) | Retry Rate | Trend | Estado | Detalhes |
|---|---|---|---|---|---|
| Apple iCloud | 2.97 | 0.0% | ▲ | Healthy | View Details |
| Barracuda | 1.40 | 0.4% | ▬ | Healthy | View Details |
| Comcast / Xfinity | 24.86 | 10.9% | ▲ | Issues | View Details |
| GMX / WEB.de | 2.98 | 0.0% | ▲ | Healthy | View Details |
| Google Mail | 1.29 | 0.3% | ▬ | Healthy | View Details |
| Microsoft 365 | 1.70 | 0.1% | ▬ | Healthy | View Details |
| Mimecast | 1.66 | 39.0% | ▬ | Issues | View Details |
| Outlook / Hotmail | 1.92 | 0.0% | ▬ | Healthy | View Details |
| Proofpoint | 1.29 | 0.7% | ▬ | Healthy | View Details |
| Spectrum / Charter | 2.07 | 0.0% | ▲ | Healthy | View Details |
| Yahoo / AOL | 0.91 | 0.0% | ▼ | Healthy | View Details |
Details for Apple iCloud
← Back to OverviewP95 Latency (24 hours)
Delivery Issues (24 hours)
Retry and Bounce RatesTop Delivery Failure Reasons (24 hours)
| Razão | Distribution |
|---|---|
| Apple HM08 policy rejection |
33.1%
|
| Unknown |
31.5%
|
| Apple CS01 policy rejection |
29.9%
|
| Network error (timeout/refused/reset) |
5.1%
|
| Message too large |
0.4%
|
About 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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- Query ANY domain - not just the majors you see above
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