Skribble AG - Swiss Mail Server outage – Incident details

Incident Report: Email Delivery Issue

Summary:

An issue was identified where emails sent from our Swiss Mail Server were being classified as spam and discarded by recipient mail servers.

Root Cause:

The issue stemmed from a broken DNS record. Emails were being sent using the sender domain "@mail.skribble.com," which was not properly configured. This led to spam protection measures by recipient mail servers rejecting the emails.

Timeline of Events:

12:10 - Reports were received that emails sent from the server were being rejected or discarded as spam.

12:32 - Problems confirmed, investigations started

12:38 - Identified DNS records as source of the issues.

13:02 - DNS records repaired an updates.

13:xx - Monitoring DNS propagation and successful e-mail delivery.

Incident Status:

The issue has been resolved. Emails are now being successfully delivered as DNS propagation completes.

Update: The DNS record has been corrected. Please note that it may take some time for the changes to propagate across other DNS servers.

Update: The issue has been identified as a broken DNS record for our mail server. This is causing recipients to classify and discard our emails as spam.