Odd problem with POP mail

I asked this question in another thread, but I think it got lost due to the
original question being answered.
I recently removed a domain from my Groupwise system and associated it with
another mail system. When I go in through the Groupwise client and send an
email to wade@domain.name it gets delivered properly to the new mail system.
If I use a pop client though and send an email to wade@domain.name it is
delivered locally in the Groupwise system, even though that domain is no
longer associated with Groupwise. I know I must be missing a setting
somewhere. Any one have any idea of where to look?

tia
Wade Pedersen
River City Travel