Evgeniy Arbatov wrote: EA> pts_module: ldap This module is currently very difficult to configure, IMHO. I've posted previously that there's scope for a mini-project to make it behave more similarly to other LDAP-group-orientated things such as nss_ldap or saslauthd. EA> ldap_member_method: attribute This method doesn't work they way you might expect. It finds the user object and wants to see the names of the groups of which the user is a member in the named attribute of the user. For example: dn: cn=Evgeniy Arbatov,ou=users,ou=people,dc=example,dc=com cn: Evgeniy Arbatov ou: admins ou: othergroup ou: thirdgroup If you want to put the names of the members into the group objects, you probably need to use the filter method. > dn: cn=admins,ou=groups,ou=people,dc=example,dc=com > uid: admins > member: cn=Evgeniy Arbatov,ou=users,ou=people,dc=example,dc=com I don't believe the current implementation supports this style of group membership (groupOfUniqueNames and similar). It's much more orientated towards posixGroup-style groups. Can you make your data look like dn: cn=admins,ou=groups,ou=people,dc=example,dc=com cn: admins memberuid: earbatov memberuid: otherperson Then configure ldap_member_method: filter ldap_member_filter: (memberUid=%u) ldap_member_attribute: cn EA> Via cyradm I add needed permissions for admins group: >>> sam user/postmaster admins lrswipkxte "group:admins" ? EA> Moreover, I do not see any attempts of Cyrus IMAP to query EA> LDAP for authorization information. I know that TLS is EA> working for this LDAP connection. The ptdump utility will show you the current state of the cache, eg: user: earbatov time: NNNNNN groups: 1 group: admins Cheers Duncan -- Duncan Gibb - Technical Director Sirius Corporation plc - control through freedom http://www.siriusit.co.uk/ || t: +44 870 608 0063 Debian Cyrus Team - https://alioth.debian.org/projects/pkg-cyrus-imapd/ ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html