I can't login into my cyrus IMAP neither via POP or IMAP. However I can authenticate via testsaslauthd. The mailboxes where created as user.loginname Here go my relevant config files. My /etc/imapd.conf ++++++++++++++++++++++++++++++ configdirectory: /var/lib/cyrus defaultpartition: default partition-default: /var/spool/cyrus/mail partition-news: /var/spool/cyrus/news newsspool: /var/spool/news altnamespace: no unixhierarchysep: no lmtp_downcase_rcpt: yes admins: cyrus support@xxxxxxxxxxxxxxxx allowanonymouslogin: no popminpoll: 1 autocreatequota: 0 umask: 077 sieveusehomedir: false sievedir: /var/spool/sieve hashimapspool: true allowplaintext: yes sasl_mech_list: PLAIN virtdomains: yes defaultdomain: correo.mycompany.com.uy sasl_pwcheck_method: auxprop sasl_auto_transition: no tls_cert_file: /etc/ssl/certs/ca-cert.pem tls_key_file: /etc/ssl/private/cacert.key imap_tls_cert_file: /etc/ssl/certs/smtpd.crt imap_tls_key_file: /etc/ssl/private/smtpd.key pop3_tls_cert_file: /etc/ssl/certs/smtpd.crt pop3_tls_key_file: /etc/ssl/private/smtpd.key tls_ca_path: /etc/ssl/certs tls_session_timeout: 1440 tls_cipher_list: TLSv1+HIGH:!aNULL:@STRENGTH lmtpsocket: /var/run/cyrus/socket/lmtp idlemethod: poll idlesocket: /var/run/cyrus/socket/idle notifysocket: /var/run/cyrus/socket/notify syslog_prefix: cyrus ++++++++++++++++++++++++++++++ My /etc/saslauthd.conf ++++++++++++++++++++++++++++++ ldap_servers: ldap://localhost ldap_bind_dn: cn=Manager,dc=mycompany,dc=com,dc=uy ldap_bind_pw: verysecret ldap_scope: sub ldap_search_base: ou=People,dc=mycompany,dc=com,dc=uy ldap_auth_method: custom ldap_filter: (&(objectClass=inetLocalMailRecipient)(uid=%U)) ++++++++++++++++++++++++++++++ ---- 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