1. is it possible to configure qmail so that when it sees a mail coming from "xyz.com" it will ignore all restrictions currently in place like attachment size, attachement type, etc.

2. how do you configure qmail so that when i email someone within our domain (within our private lan) so that the outbound mail doesn't have to leave the network. also when the line to the internet is down, i can still send emails to my colleagues within our domain.