# Softbounce Errors

- Provider: [SMTP2GO](https://down.guide/smtp2go)
- Level: confirmed
- Impact: Partial outage
- lasted 2h 20m
- started 2026-10-15 15:03 UTC
- Email sending (SMTP service)
- id: DWN-f90cc00807
- Official page: https://stspg.io/8933gtyrk3g1

## Updates from SMTP2GO
### 2026-10-15 15:03 UTC: investigating
The team recently updated how our servers process traffic. Specifically, SMTP (https://www.rfc-editor.org/info/rfc5321/#section-2.3.8) requires 0x0d immediately before 0x0a; a recent patch to Exim against "SMTP smuggling" has altered its behavior when it encounters a missing 0x0d.
The team is looking into rolling back this update, but in the meantime, we are suggesting connecting to 45.33.50.34, 43.228.184.6, or 45.33.53.153 instead of the mail.smtp2go.com hostname as a potential workaround.

### 2026-10-15 17:23 UTC: resolved
This incident has been resolved.

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