Service Announcement: 22 August 2024

Start Time Tuesday, 20 August 2024 13:42 (UTC +10)
End Time Thursday, 22 August 2024 08:28 (UTC +10)
Duration 42 hours 46 minutes
Services affected

Email delivery to APNIC from some email servers

Description

An update to the certificate on our email servers used for MTA-STS (Mail Transfer Agent Strict Transport Security) was performed incorrectly, resulting in a configuration that caused senders performing strict checks to fail and queue emails to APNIC. This delayed emails from email servers performing these checks including Google and Protonmail.

Many emails sent during this period were queued by sending email servers and were delivered after we applied the fix.

We will be reviewing our process for making changes to our email servers to prevent this from happening again and improving the monitoring of our email environment’s health to detect email delivery problems quicker in the future.

We apologize for the loss of facilities and any inconvenience caused. Should you require assistance in dealing with any problems arising from this outage, please contact the APNIC Helpdesk.