"User unknown in virtual mailbox table" after adding olcDbIndex: mail eq

BMWfan

Hello,

i have seen many of this log entries under /var/log/syslog:

Dec 27 20:47:19 euve264608 slapd[21619]: <= bdb_equality_candidates: (uidNumber) not indexed 
Dec 27 20:46:40 euve264608 slapd[21619]: <= bdb_equality_candidates: (memberUid) not indexed
Dec 27 20:41:38 euve264608 slapd[11858]: <= bdb_equality_candidates: (cn) not indexed
Dec 27 20:41:38 euve264608 slapd[11858]: <= bdb_equality_candidates: (kopanoAliases) not indexed
Dec 27 20:41:38 euve264608 slapd[11858]: <= bdb_equality_candidates: (mail) not indexed

why i was adding these entries as explained here https://documentation.kopano.io/kopanocore_administrator_manual/configure_kc_components.html#configure-kopano-for-user-management-with-ldap-e-g-openldap-ads

olcDbIndex: cn eq
olcDbIndex: gidNumber eq
olcDbIndex: mail eq
olcDbIndex: memberUid eq
olcDbIndex: ou eq
olcDbIndex: uid eq
olcDbIndex: uidNumber eq
olcDbIndex: uniqueMember eq
olcDbIndex: kopanoAccount eq
olcDbIndex: kopanoAliases eq
olcDbIndex: kopanoViewPrivilege eq

After adding these entries no mails are arriving my server and the sender gets this message:

CLIENT -> SERVER: RCPT TO:
SERVER -> CLIENT: 550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table
SMTP ERROR: RCPT TO command failed: 550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table

If i delete only this entry olcDbIndex: mail eq then it seems to be functioning, but i getting furthermore this log entries:

Dec 28 10:10:49 euve264608 slapd[27847]: <= bdb_equality_candidates: (mail) not indexed

So it seems that this entry let postfix not more find the mailbox user, but why?

Best Regards

Daniel

BMWfan

So, i could fix this issue.

i added the following

olcDbIndex: mail eq,pres

to /etc/ldap/slapd.d/cn\=config/olcDatabase\=\{1\}hdb.ldif

and built a new checksum

apt-get install rhash
tail -n +3 /etc/ldap/slapd.d/cn\=config/olcDatabase\=\{1\}hdb.ldif | rhash -C - | awk '/stdin/ {print tolower($2)}'

i have to take this new created checksum and to replace the old in line two in the file /etc/ldap/slapd.d/cn\=config/olcDatabase\=\{1\}hdb.ldif behind # CRC32.

i hope this helps somebody.

Best Regards

Daniel