Incident Date: September 17, 2021
Incident Number: PR-2349
On September 17, 2021, at 11:22 AM ET, Tucows’ hosted email platform experienced service interruption impacting IMAP, POP and Webmail in Prod A.
The service interruption was due to a split-brain issue on one of the load balancers.
At 12:36 PM ET, The Engineering team recovered the services by manually failing over the traffic to the secondary load balancer to stabilize the email environment.
Tucows is to further work with the vendor to investigate the root cause of the issue and to identify the failure of the automatic failover process.
Tucows Engineering Team