Dear Sirs, on May 31, 2017 at 0:00 to 4:00 AM (the timing will be in the zone CEST - Central European Summer Time) the domain management system shutdown will be carried out. The system will be unavailable during the shutdown. At that time there will not be available information associated with the registry in the Intranet - credit status, list of invoices and expired domains of registrars. Furthermore, the EPP system, web/unix WHOIS and RDAP; displaying a list of registrars; establishing requests for authinfo, blocking and unblocking; mojeID profile editor, interface for creating mojeID accounts and login into the domain browser will not work as well. During the shutdown there will be deployed several optimizations for our helpdesk, error correction in domain recovery notification, adjustment of automatic email informing about domain exclusion from the zone and other minor changes. All these changes are already implemented on the cz-test instance. In case of any questions do not hesitate to contact me. We apologize for any inconvenience caused. Markéta Kušičková -- Markéta Kušičková CZ.NIC, z.s.p.o. Milešovská 5 130 00 Praha 3 T +420 222 745 125 M +420 603 826 732