Update: System updates completed without issue.
Tonight beginning at 10pm PST we will be applying updates to various systems, including our customer shell server. Any downtime to effected services should be brief, and we expect to complete the maintenance within 1 hour.
Tomorrow (12/23/20) night at 11 PM we will be testing network redundancy for some services served out of part of our Northern California network. There should be no customer facing effect, but if there is it may exhibit as short-term problems connecting to the incoming mail cluster and webmail. All testing should be completed within an hour of starting.