Dear Dovecot Team, We would like to use the LDAP iterate for dovecot replication, but I got this error: dovecot: auth-worker(10149): Error: ldap(*): ldap_search(base=ou=mail,o=asd,c=TLD filter=(objectClass=inetMailUser) failed: Size limit exceeded dovecot: replicator: Error: User listing returned failure dovecot: replicator: Error: listing users failed, can't replicate existing data When I check the "doveadm replicator status": ... Total number of known users?? 1200 But we have more than 10.000 users. When I run the ldapsearch manually, I get the full list of the mail addresses. Who can I fix it? Thank you, Attila # dovecot --version 2.2.27 (c0f36b0) # dovecot -n | filtered # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.9.0-6-amd64 x86_64 Debian 9.8 auth_worker_max_count = 150 default_vsz_limit = 512 M doveadm_password =? # hidden, use -P to show it doveadm_port = *** mail_gid = vmail mail_plugins = " quota notify replication" namespace inbox { ?... } passdb { ? args = /etc/dovecot/dovecot-ldap.conf.ext ? driver = ldap } plugin { ? mail_replica = tcp:REMOTE_IP } replication_dsync_parameters = -d -N -1 -l 30 -U service aggregator { ? fifo_listener replication-notify-fifo { ??? user = vmail ? } ? unix_listener replication-notify { ??? user = vmail ? } } service auth { ? inet_listener { ??? address = LOCAL_IP ??? port = LOCAL_PORT ? } ? unix_listener auth-userdb { ??? group = vmail ??? mode = 0600 ??? user = vmail ? } } service dict { ? unix_listener dict { ??? group = vmail ??? mode = 0600 ??? user = vmail ? } } service lmtp { ? inet_listener lmtp { ??? address = LOCAL_IP ??? port = LOCAL_PORT ? } } service replicator { ? process_min_avail = 1 ? unix_listener replicator-doveadm { ??? mode = 0600 ? } } userdb { ? args = /etc/dovecot/dovecot-domain-ldap.conf.ext ? driver = ldap ? result_success = continue-ok } userdb { ? args = /etc/dovecot/dovecot-ldap.conf.ext ? driver = ldap ? result_failure = return-fail } protocol imap { ... } protocol pop3 { ... } # grep -v '^ *\(#.*\)\?$' dovecot-ldap.conf.ext uris = ldaps://ldap.URL dn = uid=auth,o=domain,c=TLD dnpass = **** sasl_bind = no tls_ca_cert_dir = /etc/ssl/certs tls_require_cert = demand ldap_version = 3 base = ou=mail,o=asd,c=TLD deref = never scope = subtree user_attrs = =home=/dev/null/%Ld/%L{ldap:uid}, mailQuota=quota_rule=*:bytes=%$ user_filter = (objectClass=inetMailUser) pass_attrs = userPassword=password pass_filter = (objectClass=inetMailUser) iterate_attrs = mail=user iterate_filter = (objectClass=inetMailUser) default_pass_scheme = PLAIN