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PrakashModak-0346 avatar image
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PrakashModak-0346 asked ·

Exchange 2013 GALSYNC

Hello,
we have two exchange installations in two forests , the AD trust is the domain level two way trust.
i want to hav GAL synced between two exchanges so that i can get free/busy services.

can anyone please help me?



Thanks
Prakash

office-exchange-server-administration
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KaelYao-MSFT avatar image
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KaelYao-MSFT answered ·

Hi, Prakash.

You may use (MIM)Microsoft Identity Manager to perform a galsync between the forests.
It needs a SQL server in your environment.

About the detailed steps, you may refer to this article:
Using Microsoft Identity Manager Synchronisation Server's Global Address List Synchronisation feature to create a shared global address book across three Exchange Forests
(Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. )

Once the galsync succeeded, you may see mailboxes in another forests synced in the specific OU and appear as "cross-forest mail contact" in EAC>contacts.
74162-57.png

About configuring the free/busy(availability) service, there is also a Microsoft document: Configure the Availability service for cross-forest topologies
And since you are using Exchange 2013, there are some additional steps introduced in this KB: Cross forest free/busy lookup fails when target forest is Exchange Server 2013 or Exchange Server 2016


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PrakashModak-0346 answered ·

Thank you for the Quick response :) ,

Regarding GALsync , MIM i need to purchase a license and i'm looking for something free :)


we have acquired a company and it came with a complex IT setup or i would say misconfigured setup.
the complication with us is, both forests are using the same UPN suffix ( though Domain Name is different)

Forest A (domain name qwe.local) , has 5 UPN suffix, one of which (abc.com) which used for user login(user1@abc.com) .
Forest B (domain name ABC.com) has by default user11@abc.com id.

now i'm stuck with free/busy not woking, as the trust is domainwide two way (not forest) but no GALSYNC
i tried creating mail contact manually to test but it's not working

i've followed the Technet article for Free/busy configuration.
https://social.technet.microsoft.com/wiki/contents/articles/28332.steps-to-configure-cross-forest-availability-between-two-exchange-forests-in-exchange-2013.aspx

i'm sorry, i started my question with GALSYNC and now asking about free/busy....

Thanks
Prakash

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Hi, Prakash.

Sorry for the late reply.

Please first check if autodiscover of the other forest is working fine in each forest.
You may use Test E-mail autoconfiguration via Outlook to test it and check the result under the "log" tag if autodiscover succeeded.


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Hi, @PrakashModak-0346
I am writing here to confirm with you how thing going now?


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