DNS lookups on self

Isn't this a bit silly?

When the domain and IPs are in relay-hosts and not in access (which is
how it is supposed to be, unless I'm having a 'sunday grey matter moment')
and local-host-names, why the hell is Sendmail doing RBL lookups on them,
including itself when it doesnt for those external domains I place in
access, since relay-domains is working (the only place you can whitelist
your own network or others from bad helo's) and I consider it to be extra
work for sendmail if I instruct it to RELAY/OK in access file (which I
have always beleive to be the case and have others since I've seen them
mention to newbies that it isnt needed).. what gives? Is this a bug?
Just womdering if others have seen this (found on production and verified
on dev box), like I said, maybe its coz its sunday and im not thinking
right, if you get my drift


--
Cheers
Res

"The hopes we had, were much to high, way out of reach, but we have to
try, no need to hide, no need to run, cause all the answers come one by
one. The game will never be over, because we're keeping the dream alive"
-Freiheit