# Greylisting Issues with Microsoft/Yahoo

- Provider: [SMTP2GO](https://down.guide/smtp2go)
- Level: confirmed
- Impact: Degraded
- lasted 7d 15h
- started 2025-11-05 14:47 UTC
- Email sending (SMTP service)
- id: DWN-bc2f172a37
- Official page: https://stspg.io/pbxn399lp0c8

## Updates from SMTP2GO
### 2025-11-05 14:47 UTC: investigating
We have identified some greylisting issues with Microsoft/Outlook and Yahoo and are actively working on solutions to mitigate the slowed delivery.

### 2025-11-06 03:01 UTC: monitoring
A fix has been implemented and we are monitoring the results.

### 2025-11-13 06:34 UTC: resolved
This incident has been resolved.

---
down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by Sazabi (https://sazabi.com/?utm_source=down-guide&utm_medium=markdown).