# Connection Failures and Delays

- Provider: [SMTP2GO](https://down.guide/providers/smtp2go)
- Confidence: Confirmed
- Impact: Operational
- lasted 3h 25m
- started 2026-05-04 19:04 UTC
- Email sending (SMTP service)
- eu, us
- id: DWN-52bb5e59bb
- Official page: https://stspg.io/bfjskmhg4w7m

## Updates from SMTP2GO
### 2026-05-04 19:04 UTC: investigating
Degraded performance of US inbound servers is causing processing delays, intermittent timeouts and incorrect "421 Too many concurrent SMTP connections from this IP address; please try again later." errors. This is isolated to US-based servers. If you are experiencing any of these issues, please try changing the server name to mail-eu.smtp2go.com until further notice.

### 2026-05-04 22:29 UTC: resolved
This incident has been resolved.

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