Tech Blog

Had a very weird issue where users on prem couldnt access mailboxes for users online even though the permissions were correct.

The error was:

Cannot expand the folder. The set of folders cannot be opened.

Had a good google and the recommendations were to do the following which didnt work for me:

Connect to 365 and run:

#remove permissions
Remove-MailboxPermission -Identity Manager@bohemiangrove.co.uk -User User1@bohemiangrove.co.uk -AccessRights FullAccess

#Add permissions
Add-MailboxPermission -Identity Manager@bohemiangrove.co.uk -User User1@bohemiangrove.co.uk -AccessRights FullAccess -InheritanceType All -AutoMapping:$false

So what I did to fix this was to add this for

1. Exit Outlook.
2. Start Registry Editor. To do this, use one of the following procedures, as appropriate for your version of Windows:
3. In Registry Editor, locate and then click the following registry subkey:
   HKEY_CURRENT_USER\Software\Microsoft\Exchange
4. On the Edit menu, point to New, and then click DWORD Value.
5. Type AlwaysUseMSOAuthForAutoDiscover, and then press Enter.
6. Right-click AlwaysUseMSOAuthForAutoDiscover, and then click Modify.
7. In the Value data box, type 1, and then click OK.
8. Exit Registry Editor.

Did you know you can automatically assign calendar entries colours (notice how colours is spelt the correct British way) and categories.

I.e. say you have set a meeting called “Project Bob” and that meeting and any future meeting with words “Project” and “Bob” in to be set a specific colour in your calendar, well here’s how:

Open your Outlook Calendar

Click the View Menu item

Click the “View Settings” button under Current View

Click the “Conditional Formatting” button

Click the “Add” button to create a new rule for auto-colouring appointments

Enter the name of the rule in the “Name:” text box e.g. Project Bob

Select a colour in the “Colour:” drop down list box (I like green)

Click the “Condition…” button to identify the conditions under which this colour should be applied

Select the “Appointments and Meetings” tab and enter a keyword into the “Search for the word(s):” text box to look for a word in the Subject field

Click OK to all screens,

You should see the changes straight away.