This would make my life a lot easier in migrating to Dovecot. And it should be really easy to implement. Here's how linuxconf does it:
Password files are placed in the /etc/vmail directory as follows:
/etc/vmail/passwd.domain1 /etc/vmail/shadow.domain1 /etc/vmail/passwd.domain2 /etc/vmail/shadow.domain2
The password and shadow files are exactly the same format as the /etc/password and /etc/shadow files. The user name within the files would be the %n part of the email address passed to authenticate with.
Basically the password file names are /etc/vmail/passwd.%d with the user withing the file being %n.
marc:x:40000:12:Marc Perkel:/vhome/perkel.com/home/marc:/bin/false test:x:40001:12::/vhome/perkel.com/home/test:/bin/false dd:x:40002:12:Atia:/vhome/perkel.com/home/dd:/bin/false test2:x:40003:12::/vhome/perkel.com/home/test2:/bin/false
It also makes merging several servers with separate passwd/shadow files into one virtual system because all you have to do is copy their existing passwd/shadow files into the /etc/vmail directory and rename them with the domain at the end.
So - wouldn't that be easy to add? Sure would make migrating easy for me.
-- Marc Perkel - marc@perkel.com
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