# We experienced a technical issue

- Provider: [MailerSend](https://down.guide/providers/mailersend)
- Confidence: Confirmed
- Impact: Major outage
- lasted 0m
- started 2026-02-19 15:35 UTC
- id: DWN-b1205f8a54
- Official page: https://status.mailersend.com/incidents/01KHV8N6K0H7SE59S8PHCW6BCK

## Updates from MailerSend
### 2023-04-12 10:30 UTC: monitoring
We experienced a technical issue during our release, which caused an outage on our sending servers. Our engineers worked on a fix as soon as we identified the root cause. This incident happened at 10:36 am UTC+2 and resulted in losing emails sent with our SMTP relay.
We apologize for this downtime. We know you have emails to deliver, so we have been 100% focused on resolving this and preventing future issues. You can check the status page for regular updates.
We appreciate your understanding,
The MailerSend team

### 2023-04-12 12:45 UTC: monitoring
SMTP is now operational.

### 2023-04-12 16:52 UTC: resolved
This incident has been resolved.

From the builder: does your app depend on MailerSend? [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=mailersend) detects problems in your own logs without hand-written monitors, and you can ask it in plain language which errors mention MailerSend.

---
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://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=DWN-b1205f8a54), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
