Future i Information : Routing mail with qmail

On Future i Information

All mail to username@any_future_i_owned_domain and username-extra_string@any_future_i_owned_domain is routed to your account.
You must set up .qmail files in your home directory for mail to be recieved. Default behaviour is for the mail to bounce.
Each line of a .qmail file defines a destination for messages, i.e. it is very easy to route messages to multiple destination.
- A line beginning in a slash or dot, and not ending in a slash delivers mail to the file system in mbox format, e.g./home/user/.email delivers to the file .email in user's home directory.
- A line beginning in a slash or dot, and ending in a slash delivers mail to the file system in Maildir format, e.g./home/user/Maildir/email delivers to the directory Maildir in user's home directory.
- A line not starting with a special symbol routes to a local user, e.g. chris routes to the user chris.
- A line starting with & bounces mail to an email address, e.g. &chris@coldmail.com redirects mail to the address chris@coldmail.com
- A line starting with | pipes mail through a command, e.g. |myhandler pipes mail through the command myhandler. Note, to filter with procmail, it's normal to user | preline procmail
If you are using extra addresses of the form username-extra_string@any_future_i_owned_domain, you will need an extra file called .qmail-extra_string, using the same syntax as normal .qmail files. The file .qmail-default will handle any extra_string without it's own .qmail file. Note that extra_string is converted to lowercase before matching so all .qmail-extra_string files should be in lowercase.
Some domains are defined as virtual (See documantation on configuring a domain). All mail to a virtual domain is sent it's owner. A message to user_string@virtual_domain is delivered locally to username-user_string, where username is the owner of virtual_domain
All mail not routed to a local user is delivered to the user alias, then routed as normal, using .qmail files in the home directory.

More info in dot-qmail(5) and at http://www.nrg4u.com/