sendmail access

[kalin m]

hi all... 

reading 
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/sendmail.html

i did get an access file set up. it doesn't do anything thought... 

i have only entry like this:

some.domain.com            OK

and did make. then changed /etc/defaults/rc.conf to 
sendmail_enable="YES"....

restarted sendmail. cool. so far. now mail is a accepted from everywhere 
not only the entry in access: some.domain.com

why?

thanks...