Heysender experienced a minor incident on December 4, 2025, lasting 7h 7m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Dec 04, 2025, 06:01 AM UTC
We're currently investigating what seems to be an issue connecting to smtp.heysender.com. New status within 30 minutes..
- investigating Dec 04, 2025, 06:05 AM UTC
The issue also affects the app, API and outgoing SMTP. We're still investigating..
- resolved Dec 04, 2025, 06:11 AM UTC
All systems seem to be online again. We're keeping an eye on things but from here it seems to be a network issue at our hosting supplier resulting in about 10 minutes of downtime. We will update when we know more..
- resolved Dec 04, 2025, 01:09 PM UTC
This incident has been resolved..
- monitoring Dec 04, 2025, 01:11 PM UTC
The issue was caused by a firewall issue at our hosting provider. It was solved with 10 minutes of total downtime to the system. .