drwxr-xr-x  3 root root      4096 2008-04-12 16:35 opt

/opt:
total 4
drwxr-xr-x 10 imap imap 4096 2008-09-07 16:01 maildir

/opt/maildir:
total 32
drwxr-xr-x 2 imap imap 4096 2008-07-22 18:37 myserver.com
drwxr-xr-x 3 imap imap 4096 2007-05-20 00:13 otherserver.com
drwxr-xr-x 3 imap imap 4096 2007-05-20 00:13 domainnumber6.com
drwxr-xr-x 2 imap imap 4096 2007-12-31 18:09 testsitenumber5.ca
lrwxrwxrwx 1 imap imap    9 2008-11-05 16:26 alias2myserver.com -> myserver.com

/opt/maildir/myserver.com:
total 16
drwxr-xr-x 32 imap imap 4096 2009-02-06 10:21 test
drwxr-xr-x 32 imap imap 4096 2009-02-06 10:21 john
lrwxrwxrwx  1 imap imap    5 2008-11-05 16:26 johnsalias -> john
lrwxrwxrwx  1 imap imap    5 2008-11-05 16:26 customers -> test
lrwxrwxrwx  1 imap imap    5 2008-11-05 16:26 dave -> test
drwxr-xr-x  5 imap imap 4096 2007-06-01 17:44 marvin
drwxr-xr-x 19 imap imap 4096 2009-02-06 11:46 spam
lrwxrwxrwx  1 imap imap   33 2008-11-05 16:26 bigalias -> /opt/maildir/otherserver.com/bigjohn

...