O365 Address book separately

Question

O365 Address book separately

Dopod 81

We have O365 Tenant for an address book(email,team) of each of branches(8) under same tenant.

Currently branches can search an address book under tenant. We need restricted search an address book each branches of internal only but root of an address book can search all branches under tenant. How can I implement and configure ? Please advise me Thank in advance

Yuki Sun-MSFT 37,201 Reputation points

2023-11-06T08:36:41.4333333+00:00

Hi @Thongrob Kanjanaluck ,

Just checking in to see how things are going with this thread. Did you need any more help with this question? If not, could you please mark "Accept Answer" on the appropriate answer so other users can reference it? And, if you have any further questions, feel free to post back.

Yuki Sun-MSFT 37,201 Reputation points

2023-11-06T08:36:41.4333333+00:00

Hi @Thongrob Kanjanaluck ,

Just checking in to see how things are going with this thread. Did you need any more help with this question? If not, could you please mark "Accept Answer" on the appropriate answer so other users can reference it? And, if you have any further questions, feel free to post back.

Answer 1

Vasil Michev 85,401 MVP

Take a look at the Address book policies functionality: https://learn.microsoft.com/en-us/exchange/address-books/address-book-policies/create-an-address-book-policy

Do note that ABPs do not prevent user communication, if a user knows the email address of another user, they can still contact them. If you need to restrict that as well, you will need to configure transport rules that block messages sent between different branches.

Yuki Sun-MSFT 37,201 Reputation points

2023-11-02T02:13:46.5166667+00:00

Hi @Dopod ,

Agreed with Vasil that you can consider implementing separate Address Book policies for each branches. Aside from the link shared above by Vasil, you can also have a look at the blog below for the instructions on how to configure this:

How to Implement Address Book Policies in Office 365/Exchange 2013/2016 Effectively
(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.)

By the way, if you found Vasil's reply helpful, please Accept the answer so that it can improve searchability for others in the community who might be researching similar information.

If you have further questions, feel free to post back.
Dopod 81 Reputation points

2023-11-02T12:09:33.41+00:00

Thanks for answer

I do not need block them to send the message but they can manual insert the email address . I just need them to restricted search cross an address book only.
Yuki Sun-MSFT 37,201 Reputation points

2023-11-03T01:18:26.3033333+00:00

Hi @Thongrob Kanjanaluck ,

I do not need block them to send the message but they can manual insert the email address . I just need them to restricted search cross an address book only.

Then implementing ABPs as mentioned earlier should be enough to meet your requirements : )
Yuki Sun-MSFT 37,201 Reputation points

2023-11-10T07:30:19.0766667+00:00

Hi @Thongrob Kanjanaluck ,

It's been a few days since we have got an update. Could you please let us know if the provided suggestion is helpful or if you need any further assistance?

Answer 2

Dopod 81

Hello

I try to following artical and try to many method to create ABP. My step is

create new GAL / AL / OAB / ROOM for each domain
create new ABP for each domain
Define CustomAttribute1 -eq = "each domain"

But user each domain can search across domain.

User's image

Yuki Sun-MSFT 37,201 Reputation points

2023-11-15T07:56:34.31+00:00

Hi @Thongrob Kanjanaluck ,

Please check if you have applied the new created ABP to the selected user for test.
Assign an address book policy to users in Exchange Online
Yuki Sun-MSFT 37,201 Reputation points

2023-11-17T07:16:01.22+00:00

Hi @Thongrob Kanjanaluck ,

Just checking in to see how things are going with this thread. Have you had a chance to try the suggestion provided and see if it can work?

Answer 3

Dopod 81

Hi Follow this artical https://www.azure365pro.com/how-to-implement-address-book-policies-in-office-365exchange-20132016-effectively-part-3/

O365 Address book separately

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