| Synopsis | |
|---|---|
| Begin | 2026-05-08 18:30:00 |
| End | 2026-05-11 09:15:00 |
| Affected | smtp servers |
Since last Friday (May 8) around 18:30, our SMTP servers have intermittently refused to accept mail for sending. The issue was caused by rspamd refusing to filter messages for unknown reasons.
The issue seems to be resolved for now, we will keep an eye out for the problem to re-occur.
Update: It looks like the issue was resolved by explicitly setting some default settings to their default value. By doing this we were able to prevent errors that occurred with some e-mails. We think these errors caused the SMTP server stop accepting mail in some cases.