Re: Using 2 LDAP sources for passdb

Aki Tuomi via dovecot <[email protected]> Tue, 2 Jun 2026 16:33:40 +0300 (EEST)

Newsgroups	gmane.mail.imap.dovecot
Message-ID	<620437217.7329.1780407220910@appsuite-pro-sync-core-mw-groupware-0.appsuite-pro-sync-core-mw-hazelcast-headless.appsuite-dev.svc.cluster.local>

> On 02/06/2026 16:21 EEST Tom via dovecot <[email protected]> wrote:
> 
>  
> I can't seem to find documentation that shows how to set up 2 LDAP passdb blocks. I can get each of them working properly, but only the second of the two works at any given time. I can't figure out the syntax needed to get both to work, even though I've been all over the Dovecot 2.4x official documentation. The docs seem to suggest settings that the server rejects.
> 
> Anyone have any experience doing this, or know the correct syntax? Thanks in advance!

# you can share settings like this
ldap_auth_dn = cn=dovecot,ou=apps,dc=example,dc=com
ldap_auth_dn_password = D0vec0t
ldap_uris = ldapi://%2Frun%2Fldapi
ldap_version = 3 
ldap_bind = yes

passdb ldab-1 {
 driver = ldap 
 ldap_bind_userdn = cn=%{user},ou=apps,dc=example,dc=com
 ldap_filter = (&(objectClass=applicationProcess)(cn=%{user}))
}

passdb ldap-2 {
  driver = ldap
  ldap_bind_userdn = cn=%{user},ou=apps,dc=example,dc=com
  ldap_filter = (&(objectClass=posixAccount)(uid=%{user|username})(memberOf=cn=mail,ou=%{user|domain},ou=groups,dc=example,dc=com))
}

Aki

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