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Did you grant permissions on the root folder (&quot;Top of information store&quot;)? You need to give them at least Folder Visible rights.
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Hello Dominic Rouvier,<br />
The above query is already being solved. You can find the solution from the below link:<br />
<a href="https://www.experts-exchange.com/questions/26978208/exchange-2010-unable-to-open-other-users-folder.html" rel="ugc">https://www.experts-exchan<wbr />ge.com/que<wbr />stions/269<wbr />78208/exch<wbr />ange-2010-<wbr />unable-to-<wbr />open-other<wbr />-users-fol<wbr />der.html</a>
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Hi All - thanks for this - have got a step further and now able to see the mailbox! <br />
My next question is how can i have the inbox permanently pinned and showing on the folder list on the left. At the moment when client B's inbox is opened it supersedes client A's so he effectively cant view both at the same time it would seem. I have attached a pic to demonstrate where client B (Henry) has opened client A's (John) inbox. Henry's folder list remains in view on the left but John's inbox dominates the main Outlook window &nbsp;- how can i have both accessible without showing contacts?<br />
<br />
Thanks<br />
<a href="https://filedb.experts-exchange.com/incoming/2016/09_w39/1118395/Other-user-mailbox.png" target="_blank" class="file-inline" title="Other-user-mailbox.png (212 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>Other-user-mailbox.png</a>
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Other-user-mailbox.png

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Hi i made a typo in the above post - i didn't reread my submission properly - very sorry - <br />
I have underlined the change :<br />
<br />
Hi All - thanks for this - have got a step further and now able to see the mailbox! <br />
&nbsp;My next question is how can i have the inbox permanently pinned and showing on the folder list on the left. At the moment <u>when client A's inbox is opened it supersedes client B's so </u>he effectively cant view both at the same time it would seem. I have attached a pic to demonstrate where client B (Henry) has opened client A's (John) inbox. Henry's folder list remains in view on the left but John's inbox dominates the main Outlook window &nbsp;- how can i have both accessible without showing contacts?
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Hello Dominic,<br />
&nbsp;Please Submit your query a new post in the <a href="https://www.experts-exchange.com/askQuestion.jsp" rel="ugc">Ask a Question</a> link of the Exchange Expert to have that viewed by more viewers. So that we all can help you to solve it. In here very few would be able to see it.<br />
<br />
Thanks &amp;&nbsp;Regards<br />
Edwin Hoffer
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What you need to do is add the mailbox via FIle -&gt; Account settings -&gt; double-click the account -&gt; More settings -&gt; Advanced -&gt; Add.
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Hi Vasil - will this give the user access to the inbox only? i don't want them viewing the contacts of the other user , just inbox.
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That solved it - many thanks.
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<div class="content wysiwyg-content">
Hi - <br />
<br />
I have an issue with giving access to client A's Inbox (not full mailbox) from client B - They both have Outlook 2013. Client B has full editor permissions on the inbox of client A. The error that comes up when i select OPEN Other User's folder is : &quot;&nbsp;Cannot Display the folder. The inbox folder cannot be found.&quot;<br />
They are both running on Office 365. I did not enable full mailbox permissions via the Exchange Admin web portal because i don't want Client A to see Client B's contacts, i just want to give them access to the Inbox.<br />
Any suggestions would be helpful.<br />
<br />
Thanks<br />
D
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Hi - 

I have an issue with giving access to client A's Inbox (not full mailbox) from client B - They both have Outlook 2013. Client B has full editor permissions on the inbox of client A. The error that comes up when i select OPEN Other User's folder is : " Cannot Display the folder. The inbox folder cannot be found."
They are both running on Office 365. I did not enable full mailbox permissions via the Exchange Admin web portal because i don't want Client A to see Client B's contacts, i just want to give them access to the Inbox.
Any suggestions would be helpful.

Thanks
D

Unable to open other user folder in Outlook 2016

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

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.