Oct 25 09:54:52 slave-dmz saslauthd[21330]: nss_ldap: reconnecting to LDAP server...
Oct 25 09:54:52 slave-dmz saslauthd[21330]: nss_ldap: reconnected to LDAP server ldap://slave-dmz.domain.tld:7389 after 1 attempt
Oct 25 09:54:52 slave-dmz saslauthd[21330]: pam_unix(smtp:auth): authentication failure; logname= uid=0 euid=0 tty= ruser= rhost=  user=USERNAME
Oct 25 09:54:52 slave-dmz PAM-univentionmailcyrus[21330]: No or ambigous result, found 0 entries.
Oct 25 09:54:52 slave-dmz PAM-univentionmailcyrus[21330]: failed to map username
Oct 25 09:54:54 slave-dmz saslauthd[21330]: DEBUG: auth_pam: pam_authenticate failed: User not known to the underlying authentication module
Oct 25 09:54:54 slave-dmz saslauthd[21330]: do_auth         : auth failure: [user=USERNAME] [service=smtp] [realm=] [mech=pam] [reason=PAM auth error]
Oct 25 09:54:54 slave-dmz saslauthd[21325]: nss_ldap: reconnecting to LDAP server...
Oct 25 09:54:54 slave-dmz saslauthd[21325]: nss_ldap: reconnected to LDAP server ldap://slave-dmz.domain.tld:7389 after 1 attempt
Oct 25 09:54:54 slave-dmz saslauthd[21325]: pam_unix(smtp:auth): authentication failure; logname= uid=0 euid=0 tty= ruser= rhost=  user=USERNAME
Oct 25 09:54:54 slave-dmz PAM-univentionmailcyrus[21325]: No or ambigous result, found 0 entries.
Oct 25 09:54:54 slave-dmz PAM-univentionmailcyrus[21325]: failed to map username
Oct 25 09:54:56 slave-dmz saslauthd[21325]: DEBUG: auth_pam: pam_authenticate failed: User not known to the underlying authentication module
Oct 25 09:54:56 slave-dmz saslauthd[21325]: do_auth         : auth failure: [user=USERNAME] [service=smtp] [realm=] [mech=pam] [reason=PAM auth error]