On the eve 16th of June 2018, Mynic DNS servers reportedly down due to issue with DNSSEC. The downtime apparently occurred during Hari Raya holiday – where most people were on Hari Raya holiday.
The issue was by a glitch with Mynic DNSSEC key while pushing zone information to IANA servers.1
The restoration was swift but DNS take time to propagate all over the internet. 2
Only one of our customers from oil and gas industries had difficulty sending emails from their vessels out in open sea via sat comm. We instructed them to switch to another DNS resolver to overcome this issue. (after mynic rectified the problem)