Seems alot of comanies these days are inforcing a policy that ther is
no
access to Web based mail on the Internet such as Hotmail, Yahoo, etc.

This helps stops introduction of Viruses etc.

Has anyone had to implement such a policy? If so is there a way to
block
all access to those type of sites without indvidually blocking each
address ... there are just too many.

Regards,
Dale Bentley