CRES maintenance coming October 10th, 2009 - New times!
Update - 2009-09-29 Based on your feedback, we are delaying the maintenance start time to 15:00 PST (22:00 UTC). The duration remains 6 hours and the day is still October 10th, 2009.
The Cisco Registered Envelope Service (CRES) will be temporarily unavailable while we upgrade our infrastructure. We thank you for your patience. This release contains many new features and functionality as well as improvements to the stability and performance of our hosted infrastructure. To learn more view the complete release announcement https://www.ironportnation.com/forums/viewtopic.php?t=1482
New IP ranges: As part of this upgrade, we will be moving our outbound email servers to a new set of IP addresses. Customers who have TLS require set up by IP range or firewall rules specific to res.cisco.com will need to modify their infrastructure to accommodate the new IP ranges.
208.90.57/26 204.15.81/26 220.127.116.11/25 *
* This is the original CRES ip range. During this migration we recommend you support all three sets of IP ranges
These ranges can also be queried using our published SPF record. $ dig +short res.cisco.com txt "v=spf1 ip4:18.104.22.168/26 ip4:22.214.171.124/25 ip4:126.96.36.199/26 mx:res.cisco.com ~all" As a best practice we recommend using the hostname rather than IPrange to configure TLS. For more information see Knowledge Base article 1442 http://preview.tinyurl.com/l2nbv7.
Maintenance Duration: Saturday, October 10th from 15:00 - 21:00 PST (Sat 22:00:00 - Sun 04:00:00 UTC)
Impact: During the maintenance window it will not be possible to open PXE encrypted messages. CRES admins will not be able to log into the administration interface and senders of PXE encrypted messages may receive bounce messages. All services will be restored once the upgrade is concluded. Any bounced messages can be resent at that time.
Note: This is in addition to our regularly scheduled maintenance window from 10 AM to 11 AM Pacific Time on the last Saturday of every month. Complete Terms of Service are available on the CRES web site https://res.cisco.com.
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