Dear All, As of lately we are getting more and more ldap lookup timeouts during the day.... Nov 3 12:44:59 servername postfix/proxymap[31451]: warning: dict_ldap_lookup: Search error -5: Timed out Nov 3 12:45:09 servername postfix/proxymap[28685]: warning: dict_ldap_lookup: Search error -5: Timed out Nov 3 12:45:09 servername postfix/proxymap[31449]: warning: dict_ldap_lookup: Search error -5: Timed out Nov 3 12:45:11 servername postfix/proxymap[22154]: warning: dict_ldap_lookup: Search error -5: Timed out Which go paired with the following: Transcript of session follows.
Out: 220 mx1.springer.com ESMTP Postfix In: HELO psmtp.com Out: 250 mx1.springer.com In: MAIL FROM:<some external email address> Out: 250 2.1.0 Ok In: RCPT TO:<some internal email address> Out: 451 4.3.0 <some internal email address>: Temporary lookup failure In: QUIT Out: 221 2.0.0 Bye The ldap part of the postfix config looks like this: server_host = ldap://server1:3268, ldap://server2:3268 search_base = DC=domain,DC=com query_filter = (&(homeMTA=*)(!(objectclass=publicFolder))(!(objectClass=msExchDynamicDi stributionList))(!(objectClass=Contact))(!(objectClass=group))(!(cn=Syst emMailbox*))(|(mail=%s)(proxyAddresses=smtp:%s))) domain = hash:/usr/local/postfix/etc/virtual_alias_domains special_result_attribute = homeMTA, msExchResponsibleMTAServerBL leaf_result_attribute = cn result_format = relay:[%s.springer-sbm.com] scope = sub bind = yes bind_dn = [EMAIL PROTECTED] bind_pw = password version = 3 timeout = 5 I can imagine that because of the increasing load, both DC's are getting a bit too busy.... 1. Would it be wise to increase the timeout value to say 10 seconds? 2. In the past we used a local LDAP DB to do lookups, and never had this issue... Is there a formula somewhere to calculate when its wise to move back to a local DB, instaid of doing network AD lookups? Thanks for any comments! With Kind Regards, - Marco van Kammen Springer System Manager & Postmaster - Van Godewijckstraat 30 | 3311 GX Office Number: 05E21 P.O. Box 17 | 3300 AA Dordrecht | The Netherlands tel +31 (0) 78 657 6446 fax +31 (0) 78 657 6302 [EMAIL PROTECTED] www.springer.com <http://www.springer.com/> -
