dict_ldap_lookup: Search error -5: Timed out

[Cristian Livadaru]

I just noticed this error in my postfix.log

Jun 01 07:54:46 mx.foobar.at <warning> postfix/cleanup[1820]: warning:  
dict_ldap_lookup: Search error -5: Timed out
Jun 01 07:54:46 mx.foobar.at <warning> postfix/cleanup[1820]: warning:  
B746BE0983: virtual_alias_maps map lookup problem for h.foo at foobar.at

I did a quick search but found only this issue: http://www.intevation.de/roundup/kolab/issue2982
I don't really see the solution and I also didn't find any segfaults,  
so I'm not quite sure it's the same issue.
I checked older logfiles and found some more messages like this:

postfix.log.4:May 27 11:05:05 mx.foobar.at <warning> postfix/ 
smtpd[25189]: warning: dict_ldap_lookup: Search error -5: Timed out
postfix.log.4:May 27 11:05:05 mx.foobar.at <warning> postfix/ 
cleanup[26013]: warning: dict_ldap_lookup: Search error -5: Timed out
postfix.log.4:May 27 11:05:09 mx.foobar.at <warning> postfix/trivial- 
rewrite[26031]: warning: dict_ldap_lookup: Search error -5: Timed out
postfix.log.5:May 26 12:55:58 mx.foobar.at <warning> postfix/trivial- 
rewrite[6847]: warning: dict_ldap_lookup: Search error -5: Timed out
postfix.log.5:May 26 14:57:26 mx.foobar.at <warning> postfix/trivial- 
rewrite[11389]: warning: dict_ldap_lookup: Search error -5: Timed out
postfix.log.9:May 22 18:59:23 mx.foobar.at <warning> postfix/ 
cleanup[12558]: warning: dict_ldap_lookup: Search error -5: Timed out
postfix.log.9:May 22 18:59:23 mx.foobar.at <warning> postfix/trivial- 
rewrite[12550]: warning: dict_ldap_lookup: Search error -5: Timed out

The postmaster gets this mail from Postfix:

>  Out: 451 4.3.0 Error: queue file write error
Any ideas what is causing this and what I can do to solve this problem?

Regards, Cristian

--
http://lcx.at/

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