Hi stranger 
If you camed here you probably know what are you want :)
So this is your readme

This stuff works as this 
you need to have installed:
vpopmail (http://www.inter7.com/vpopmail/)
pureftpd (http://www.pureftpd.org/)
Apache   (http://www.apache.org/)
DNS      (http://www.djbdns.org/)

and I think that's it 

Now setup 
compile everything :)

setup dns as follows 
(syntax is for BIND not for djbdns but you will figure out ;) )
--- snip ---
*.your-domain.org.	IN	A	10.0.1.12
mail.your-domain.org.	IN	A	10.0.1.12
			IN	MX	10 10.0.1.12

--- snip ---

so any request for adasdajsdakjhd.your-domain.org will be served by 
10.0.1.12, and mail offcourse
in archive you will find pureftpd authd module for
authenticating users over ftp 

As this is not package for average linux user I'm asking you to read source
(158 lines of code :) ) before mailing problems, and please don't ask me for 
help about setting apache and other stuff that is not directly related to 
this peace of code 


Have a nice day :)

P.S. I'll be glad to put any patches for this because i really cannot add
anything new in it because I really don't have time to work on it ... :(