openldap + qmail + openbsd

Dear fellows,

i am planning to build a mail server and would like to use the following technologies :

OpenBSD 5.1 amd64 qmail-ldap-1.03-20120221 qmail-1.03

Does anybody here run an environment like ? Are you aware of buggy stuf like openldap eating all system memory while qmail connect/disconnect to it (slapd) ? Is there any problem with the latest ldap patch release to be applied to stock qmail-1.03 ?

Thanks a lot for your time and cooperation.

[]s gustavo.

PS: Anyone from Brazil in this mailing list ? Using such technologies ?