Newbie question

[David Bengtsson]

Dear gurus,

A simple question. How do I change the domain name provided by Qpopper when
I telnet to port 110
i.e, I want my Qpopper to respond '+OK Qpopper (version 4.0.2) at
mail.mydomain.com starting.' Right now it reponds '+OK Qpopper (version
4.0.2) at mail.wrongdomain.com starting.'

 Blue Skies,
 /David