Check the domain your account is located on: HostPilotĀ® Control Panel > Home > Exchange servers and settings > Exchange Domain section.

Primary Name Server

Primary Server Hostname.........: NS2.INTERMEDIA.NET
Primary Server Netaddress........: 64.78.57.46

Secondary Name Servers

Secondary Server Hostname.......: NS3.INTERMEDIA.NET
Secondary Server Netaddress......: 162.244.196.45

Secondary Server Hostname.......: NS4.INTERMEDIA.NET
Secondary Server Netaddress......: 64.78.22.187

Secondary Server Hostname.......: NS5.INTERMEDIA.NET
Secondary Server Netaddress......: 206.225.164.198

If your account is located on EXCH500 (UK) or EXCH580 (UK) use:

Primary Name Server

Primary Server Hostname.........: NS2.SERVERDATA.NET
Primary Server Netaddress........: 64.78.57.48

Secondary Name Servers

Secondary Server Hostname.......: NS3.SERVERDATA.NET
Secondary Server Netaddress......: 162.244.196.42

Secondary Server Hostname.......: NS4.SERVERDATA.NET
Secondary Server Netaddress......: 64.78.22.154

Secondary Server Hostname.......: NS5.SERVERDATA.NET
Secondary Server Netaddress......: 206.225.164.193