<div>
Will give it a try, thank you.
</div>


<div>
Hi iamdieter,<br />
<br />
Any update on this?
</div>


<div>
This solution fixes the issue reported.
</div>


<div>
<div class="content wysiwyg-content">
I have a hybrid solution setup between my on-prem and O365. The problem I have is that O365 users can not see the free/busy information of any new domain I create (on-prem) and configure. For old domains we had when hybrid configuration was setup, O365 users can still see free/busy information of those users, and vice versa. <br />
<br />
So to clarify, if I had to create a new domain now called problem.com with mailboxes on-prem, and set it up with all DNS records required and added to O365, the users on O365.com will not be able to see the free/busy schedule for any users on the problem.com domain. The problem.com users though, are able to see the free/busy schedule of the O365 users.<br />
<br />
Note, CNAME and SRV records have all been added and domain verified on O365.<br />
<br />
Can any one point me in the right direction? I have attached a screenshot which shows two users (both on prem) free and busy information. The new domain's free and busy does not show, but the old domain's does..<a href="https://filedb.experts-exchange.com/incoming/2018/06_w25/1342934/Screen-Shot-2018-06-22-at-11.26.16.png" target="_blank" title="Free/busy information (21 KB)"><img alt="Free/busy information" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2018/06_w25/800_1342934/Screen-Shot-2018-06-22-at-11.26.16.png" /></a>
</div>
</div>


Screen-Shot-2018-06-22-at-11.26.16.png

I have a hybrid solution setup between my on-prem and O365. The problem I have is that O365 users can not see the free/busy information of any new domain I create (on-prem) and configure. For old domains we had when hybrid configuration was setup, O365 users can still see free/busy information of those users, and vice versa. 

So to clarify, if I had to create a new domain now called problem.com with mailboxes on-prem, and set it up with all DNS records required and added to O365, the users on O365.com will not be able to see the free/busy schedule for any users on the problem.com domain. The problem.com users though, are able to see the free/busy schedule of the O365 users.

Note, CNAME and SRV records have all been added and domain verified on O365.

Can any one point me in the right direction? I have attached a screenshot which shows two users (both on prem) free and busy information. The new domain's free and busy does not show, but the old domain's does..

Why can O365 users not view free/busy information of new domains

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.