CVM_QMAIL_LOOKASIDE

Hello,

I'm using cvm 0.96 with cvm-qmail. Everything works fine unless I set 
CVM_QMAIL_LOOKASIDE. Once it is set, lookups for valid qmail users fails 
with this error:

451 4.1.0 Sorry, I could not verify that recipient (internal temporary 
error).

The error in the logs is:

@400000004e42a2f615fb4be4 ? astrope@<my.fqdn>

Actually, it will work fine if CVM_QMAIL_LOOKASIDE is empty. If I set it 
to /usr/bin/vmailmgr or vmailmgr or |/usr/bin/vmailmgr, it fails witht he 
above error.

I'm using mailfront 1.21 and I'd like to chain cvm-qmail to cvm-vmailmgr, 
but cvm-qmail always validates the vmailmgr users if there is a 
.qmail-default file.

I also have another issue which I don't know if it is related to cvm-qmail 
or mailfront... The cvm-qmail documentation says it will use users/cdb if 
present and the system password file if it isn't. In my case, all qmail 
lookups fail if there is no users/cdb.

Any help is appreciated.

Thanks,

Trevor