In Reply To:
What happens if I do that?
It will remove the entry from ConfigData.pm, which also means the domain will be removed. Your
In Reply To:
Will all my users for that domain get deleted?
They won't get deleted, but they won't be able to login as the domain won't be in ConfigData.pm.
In Reply To:
I also want to change the domain on one of the POP3 boxes, how will this affect my users?
What do you mean change it?
Adrian