[Dovecot] Building path to maildir

[Jim Horner]

> dovecot-ldap.conf
> user_attrs = mail,/var/spool/virtualmail/%d/%n,,,,

Sorry, I posted an answer to your later question which I think is useless 
given this question. These user_attrs need to be LDAP attributes like:

# User attributes are given in LDAP-name=dovecot-internal-name list. The
# internal names are:
#  home: Home directory
#  mail: MAIL environment
#  system_user: System user name (for getting user's groups from /etc/group)
#    - For virtual users you don't want to use this, so this defaults to none.
#  uid: System user ID
#  gid: System group ID
user_attrs = mail=user,mailMessageStore=home,,,

reference:
http://wiki.dovecot.org/HowTo/DovecotOpenLdap
http://wiki.dovecot.org/UserDatabase/ExtraFields