List etiquette

[Uncle Jim]

Hi,

On Mon, Mar 01, 2004 at 02:03:39PM -0600, Hal Duston wrote:
> Statistics for list kclug as of Mon Mar  1 13:03:37 CST 2004
>  
>     310 unique subscribed addresses.
>     181 unique domains.
>     158 domains occurring only once.

What's the difference between "unique domains" and "domains occurring only
once"?

-- 
Jim