If your primary interest is in the Cardigan Welsh Corgi, to subscribe to ShowCardi-L (for the Show Cardigan List):
In the "To:" field, type: LISTSERV@APPLE.EASE.LSOFT.COM
In the "Subject:" line, put a period
For the body of the message, type: SUBSCRIBE SHOWCARDI-L (Your Name)
Copy and paste the message above, substituting your name in the parentheses.
Do it now! Subscribe to ShowCardi-L following the simple steps above.