Incident Date: November 30, 2020 Incident Number: PR-1548
On November 30, 2020 at 11:16 AM ET, Tucows hosted email platform experienced inbound email deferrals impacting Prod B.
The issue was caused by high inbound mail causing socket timeouts.
At 1:48 PM ET, Tucows engineering team executed an emergency maintenance to update the configuration on the underlying infrastructure to improve stability.
At 4:40 PM ET, the Hosted Email engineering rolled back spam filter change that addressed the mail deferral issues.
Tucows engineering is to improve logging and enhance monitoring visibility to identify issues in a timely manner.
Tucows Engineering Team