[Dovecot] ldap passdb + mdbox

[Timo Sirainen]

On Tue, 2010-11-23 at 07:30 -0800, dmiller at amfes.com wrote:
> >> userdb {
> >>    driver = ldap
> >>    # symlink to dovecot-ldap.conf
> >>    args = /usr/local/etc/dovecot/dovecot-ldap-userdb.conf
> >> }
> >
> > The symlink isn't very useful. It'll just cause extra LDAP 
> > connections
> > to be created, since that userdb is used only for iteration anyway 
> > and
> > iterations are always executed in their own separate processes with
> > separate LDAP connection.
> 
>  Ok - I've returned to my normal state of confusion.  Prefetch 
>  documentation says I need an explicit userdb for LDA/LMTP use.  

Right.

> And 
>  somewhere I read I wasn't supposed to use the exact same filename for 
>  both userdb & passdb - but a symlink was good.  What should I use 
>  instead?

If you use the same filename, Dovecot uses the same LDAP connection for
userdb and passdb lookups. Whether that's good or bad depends on the
situation. In your case it simply creates an extra LDAP connection for
userdb lookups, which is never used.