We experienced multiple website outages on multiple servers over the weekend.
The Apache web server and all websites were for about 30 minutes.
Websites on server WWW-30 were inaccessible earlier today.
The ability to have the recipient confirm receipt of one’s email has existed for a long time. Unfortunately this functionality is not used with due care, and creates headaches.
We are installing various Linux software updates, requiring rebooting of all servers. Expect a few minutes of downtime per server over the next 12 hours.
As always, thanks a million for your efficient support!