We have brought up some new nameservers to replace old ones.
If you are using the names of the servers as provided in your welcome mail, then you do not need to change anything.
If you are using IP addresses then you will need to make the following changes
Change 184.108.40.206 to 220.127.116.11 (EU Nameservers)
Change 18.104.22.168 to 22.214.171.124 (US Nameservers)
The servers in Red are being retired as DNS servers from 31-Oct-2016
Another new European DNS Server is available 126.96.36.199
So the two DNS clusters are:
188.8.131.52 - Roubaix DataCentre 184.108.40.206 - Strasbourg DataCentre 220.127.116.11 - Gravelines DataCentre
Nameservers for the US
18.104.22.168 - Beauharnois DataCentre 1 22.214.171.124 - Beauharnois DataCentre 2