To prevent you receiving unwanted spam email, some Internet Service Providers (ISP's) block messages from senders whose email addresses are not in the recipient's Address Book or on their Safe Senders List.

To ensure your messages reach you in the future you must add email addresses or domains to your Address Book or Safe Senders List. We have provided instructions for the most commonly used ISP' and email clients:

Yahoo •    Open the email •    Click the “add to address book” on the right, next to sender’s name •    Verify the details •    Click “Add to Address Book”

Hotmail •    Once signed in, select the "Contacts" tab. •    Click on "Safe List" •    Type an email address or domain in the "type an address or domain name:" box

AOL •    Click on "Address Book" from the "Mail Options" dropdown box •    Click on the "Add" icon •    Type an email address or domain into the "Screen Name" box and click "Save"

MSN •    Click on "Settings: E-mail | Junk e-mail at the...