On 02/06/2026 16:21 EEST Tom via dovecot <dovecot@dovecot.org> 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