On Fri, 2009-07-31 at 09:50 -0500, Noel Jones wrote: > Clunk Werclick wrote: > > On Thu, 2009-07-30 at 22:45 -0500, Noel Jones wrote: > >> Jeff Grossman wrote: > > > >>> have seen articles about exporting the Exchange users via LDAP and putting > >>> them in an access map file on the Postfix server, but I am not a big fan > >>> of > >>> that. I would prefer to just query the Exchange server directly for valid > >>> addresses. > >> OK, your choice. > > > > Ehlo and sorry to high jack a little here {hence subjective change}, but > > some thing has crossed my mind along these lines with multiple exchange > > servers using active directory. > > > > Perhaps someone has, say, 10 different domains and uses Postfix as a > > common incoming gateway. From a look cursory I see there exists a ldap > > map system. > > > > Would this allow each domain to define a different LDAP server to query? > > Perhaps to be clear; > > > > DOMAIN.ONE -> LDAP{1.2.3.4} > > DOMAIN.TWO -> LDAP{1.2.3.5} > > DOMAIN.THREE -> LDAP{1.2.3.6} > > ... repeat to fade ... > > > > Can this be achieved and is there some further reading I can do this > > weekend whilst I sip champagne in the sun ? > > http://www.postfix.org/postconf.5.html#relay_recipient_maps > Notice "maps" is plural; list as many maps as necessary. > Separate multiple map definitions with a comma and/or space. > > There is no limit built into postfix concerning how many maps > you can define, but each map definition consumes system > resources (memory, file handles, etc). At some point too many > maps will impact system performance. > > Many admins find it easier and cleaner to create a single map > by dumping related data together under the control of a Makefile. > > -- Noel Jones Thank you Noel. I will sip some champagne for you this weekend whilst I consider the options :-)
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