[Kolab-devel] Kolab2 Distribution lists using alias_maps instead of virtual_maps

[Stephan Buys]

Surely Steffen is on this list? 

We have stumbled across another "fun" problem. 
a) Where best to expand the distribution lists 
b) How to define the LDAP logic so that only recipients get expanded and the
rest of the distribution list gets expanded on a "bridgehead" server.

The problem is basically as follows:

A user sends a 2Mb email to a distribution list with 300 recipients of which
only 100 users are on the local server. The net effect is that 200 * 2Mb 
messages get sent across a WAN link of some sort.
The ideal situation would be to deliver the local messages as usual then to
send one message to a central server/gateway server to intelligently expand
the distribution list on the correct server.

Still rolling this problem over in my mind, any thoughts or suggestions from
anyone else?



On Tuesday 29 March 2005 16:36, Bernhard Reiter wrote:
> HI Stefphan,
> those are questions for Steffen. :-)
> 
> 
> On Tuesday 29 March 2005 14:16, Stephan Buys wrote:
> > Should the Kolab2 server not rather use postfix virtual_maps for
> > distribution list expansion instead of alias_maps. IIRC alias_maps are used
> > only during local delivery which implies that recipients on non-local
> > homeservers will not get the messages delivered to it.
> >
> > Virtual maps will expand the distribution list on the server and then send
> > it out to other homeservers as well as trigger local delivery for the
> > relevant boxes.
> >
> > Also, the ldap searchstring of (|(cn=%u)(cn=%s)) makes a lot more sense
> > in main.cf.template?
> >
> > Also, has anyone noticed my issue
> 
> Which one in particular?
> 

-- 
Stephan  Buys
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