Steps you should take:-

1. Do you have a web connection?
2. You may have a connection, but a router has failed and this can result in a block to the mail server.
   The easiest way to check this is to PING your domain name
   Goto DOS and type ping www.yourdomainname.com and see if the server is responding.
   Please note:- depending on what ISP provider you connect through means there will be different paths taken to get to the server.
3. Are your pop3 settings correct?
4. If you have just shifted your domain from another web hosting provider
   It takes about 24/48 hours for name servers to propagate - often it's just a case of waiting until this happens.
5. Sometimes it's possible for a mail lock to happen, especially if your computer has crashed.
   If this happens please submit a support ticket or contact NZservers for the mail lock to be cleared.

Other tests you can make

Using MSDOS (Command Prompt)

At the command prompt type

> telnet [mail-server] [port No] <enter>

(<enter> means press the enter key

Example the mail server for nzservers is nzservers.com or mail.nzservers.com
The Port we want to test is the POP3 port 110 which is used to retrieve our email
If you want to test the email server to send emails (SMTP) use port 25

>telnet nzservers.com 110 <enter>

If the connection is OK you should get a message as follows:-

+OK POP3 jen [cppop 19.0] at [216.73.117.195]

To exit out type quit

This will prove you are getting a connection to the server