I have a setup with Cyrus Imap and SASL authentication. + Postfix I am getting following error on maillog. May 16 11:40:38 mail pop3[7641]: badlogin: [192.168.1.68] plaintext matthew_sullivan SASL(-13): authentication failure: checkpass failed May 16 11:40:38 mail pop3[7640]: badlogin: [192.168.1.69] plaintext duncan SASL(-13): authentication failure: checkpass failed May 16 11:52:04 mail pop3[7713]: badlogin: [192.168.1.114] plaintext s.kim SASL(-13): authentication failure: checkpass failed May 16 11:52:04 mail pop3[7650]: badlogin: [192.168.1.52] plaintext sajiv SASL(-13): authentication failure: checkpass failed The system was up about 1 year and I never faced this problem. Also I haven't changed any settings in the configuration. Since yesterday I am getting this RANDOM authentication failure and would appreciate if you could help me, Regards Rajeev My configuration is as below:- [root at mail ~]# rpm -qa |grep cyrus cyrus-sasl-md5-2.1.19-5.EL4 cyrus-sasl-devel-2.1.19-5.EL4 cyrus-imapd-utils-2.2.12-3.RHEL4.1 cyrus-sasl-2.1.19-5.EL4 cyrus-imapd-2.2.12-3.RHEL4.1 cyrus-sasl-plain-2.1.19-5.EL4 /etc/saslauthd.conf is as below: [root at mail ~]# cat /etc/saslauthd.conf ldap_servers: ldap://127.0.0.1:389/ #ldap_bind_dn: cn=admin,dc=DOMAIN,dc=com #ldap_password: secret ldap_search_base: ou=Users,ou=OxObjects,dc=DOMAIN,dc=com #ldap_default_realm: DOMAIN.com #ldap_use_sasl: yes ldap_auth_mech: PLAIN IMAP CONFIG IS cat /etc/imapd.conf configdirectory: /var/lib/imap defaultpartition: default partition-default: /var/spool/imap unixhierarchysep: yes domain_as_prefix: 1 lmtp_downcase_rcpt: yes admins: mailadmin cyrus quotawarn: 90 lmtp_overquota_perm_failure: no virtdomains: userid defaultdomain: Domain.com sendmail: /usr/sbin/sendmail.postfix allowanonymouslogin: no autocreatequota: 1024000 createonpost: no autocreateinboxfolders: Sent Items|Spam|Draft|Trash autosubscribeinboxfolders: Sent Items|Spam|Draft|Trash autosubscribesharedfolders: public umask: 077 sieveusehomedir: false sievedir: /var/spool/sieve hashimapspool: true allowplaintext: yes sasl_pwcheck_method: saslauthd sasl_mech_list: PLAIN NTLM lmtpsocket: /var/run/imap/socket/lmtp lmtpunix:/var/run/imap/socket/lmtp idlesocket: /var/run/imap/socket/idle notifysocket: /var/run/imap/socket/notify -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20070516/23a7dce1/attachment-0003.html>