What is my IP?
To see your Public IP address,
Click Here
DNS Info:
To see the DNS information like your name server, hosting company and
your web and mail server settings,
Click Here
Bandwidth (downlink / uplink ) and Speed calculator
To see the speed you are connected to internet,
Click Here
Resources for MS Exchange Administrators
MS Exchange.org
MS
Exchange 2010
Technet MS Exchange
Microsoft Resources
Technet
TechRepublic
Petri IT Knowledgebase