Dovecot postfix ldap
From DWIKI
LDAP
For the mail quota i added schema qmail.schema to slapd.conf, with some small alterations: http://dhits.nl/download/qmail.new.schema
include /usr/local/etc/openldap/schema/qmail.new.schema #users will be allowed to change password via squirrelmail access to attrs=userPassword by self write by anonymous auth by * read
To allow users to maintain mail aliases via squirrelmail
access to attrs=mailAlternateAddress by self write by * read
???
access to attrs=entry by self write by * read
access to * by * read