Assuming I have a HDD on the USB port to provide the storage, is this possible?
My ISP provides a single mail account name@ispname.com. I can use any email address of the form foo@name.ispname.com or bar@name.ispname.com but all email ends up in the same name@ispname.com account.
I want to create a mailserver that reads in all the mail from name@ispname.com and posts the correct messages to the individual accounts. I know VPOP can do this on Windows but don't know of an equivalent on Linux.