Conference chefs::ms-exchange

Hi Alcides,

	Re. 1
	Yes, they can do this if they want.  Remember though that all
	messages destined for recipients served by MAILbus400 will be routed
	through the messaging bridgehead.  You will need to make sure that you
	have sufficient bandwidth to cope with the likely traffic.

	Re. 2
	You can use messaging bridgehead servers between sites or you can
	set-up Exchange to use any server between sites.  You can search
	for recipients in the local site from the address book or use the
	Global Address Book (GAL).  All recipients will be placed in the GAL.
	The GAL is available in all sites.  It is not quite like an X.500
	database where each site owns it's little piece and will search other
	databases based on superior/subordinate references though.

	Re. 3
	I do not really understand your question *8-(  You are correct in
	saying that Exchange cannot use Digital's X.500 database.  Replication
	to where ?  Which MAPI driver are you referencing ?  The ALL-IN-1
	MAPI driver cannot access an X.500 database but the DEC MAILworks one
	can.

Nigel.

    Hi,
    
    I think I understood Question #3.  He wants to send mail to
    non-exchange users and those users have their addresses in X.500.
    
    So, either 1) move the users into the Exchange GAL as custom recipients
    (which can be done by exporting them from x.500 with XDSU and importing
     them into exchange with the admin /i utility)  OR  2) use something like
    the ELF MAPI driver to look up recipients in X.500.
    
    Warren

> I do not really understand your question *8-(  You are correct in
> saying that Exchange cannot use Digital's X.500 database.  Replication
> to where ?

Sorry for the confusion, Nigel. I meant synchronization, not replication.

> Which MAPI driver are you referencing ?  The ALL-IN-1
> MAPI driver cannot access an X.500 database but the DEC MAILworks one
> can.

I was talking about the driver referenced in note 73.20

> I think I understood Question #3.  He wants to send mail to
> non-exchange users and those users have their addresses in X.500.
>    
> So, either 1) move the users into the Exchange GAL as custom recipients
> (which can be done by exporting them from x.500 with XDSU and importing
>  them into exchange with the admin /i utility)  OR  2) use something like
>  the ELF MAPI driver to look up recipients in X.500.

Yes, you understood correctly, Warren


Now, I have two more questions:

1) From reply .1, I understand that there is at least one server in each site 
holding a copy of the GAL. If any change is made to the directory of a server 
holding a GAL, this change will be replicated to all other sites according to 
a planned schedule.
The question is: After directory synchronization between X.500 and one 
Exchange server, this server will hold many X.500 entries (Mailworks users). 
Will those entries be replicated to other sites just like directory changes, 
or each site must synchronize with X.500 database?

2) For a company with 10,000 employees, the GAL will hold 10,000 entries. 
What's the disk space required to hold all those entries? What is the impact 
to the server holding a GAL with so much entries?


Thanks for the previous replies,

Alcides

> Now, I have two more questions:
>
> 1) From reply .1, I understand that there is at least one server in each site 
> holding a copy of the GAL. If any change is made to the directory of a server 
> holding a GAL, this change will be replicated to all other sites according to 
> a planned schedule.
> The question is: After directory synchronization between X.500 and one 
> Exchange server, this server will hold many X.500 entries (Mailworks users). 
> Will those entries be replicated to other sites just like directory changes, 
> or each site must synchronize with X.500 database?

It's my understanding that Custom Recipients can be loaded onto only one
site server and they will be replicated to all the other sites.  (I'll be
trying this theory out in a few weeks - so I'll let you know if doesn't work)

> 2) For a company with 10,000 employees, the GAL will hold 10,000 entries. 
> What's the disk space required to hold all those entries? What is the impact 
> to the server holding a GAL with so much entries?

Can anyone tell us what the size of the GAL in Digital is?  How many entries?

Warren

    Hi,
    
    I dont know the MB size of the GAL but I can tell you the size of the
    Exchange directory, which includes the GAL. It is currently 164MB.
    
    The GAL currently contains 32000 visible entries and 9600 hidden ones.
    
    Hope this helps
    Richard