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#Outlook 360 for mac running slow how to#
#Outlook 360 for mac running slow full#

Look under Shared for any shared folders, as shown in the following screenshot. Select the Calendar, Contacts, Tasks or Notes folder in the Navigation pane in which you have a shared folder open. Remove shared Calendar, Contacts, Tasks, or Notes folders

#Outlook 360 for mac running slow how to#

How to remove automapping for a shared mailbox in Outlook for Office 365.

#Outlook 360 for mac running slow full#

Disable Outlook Auto-Mapping with Full Access Mailboxes.

Remove AutoMapping for the shared mailbox. This is a good option if you must have access to the shared mailbox, but do not want it AutoMapped in Outlook automatically. Remove your Full Access permissions from the mailbox. This is a good option if you no longer require access to the shared mailbox. To remove an automapped mailbox from Outlook, use one of the following options: Scroll down until you see the section, and then look for Delegate in the script, as shown in the following screenshot. When the test is complete, select the XML tab. Hold the Ctrl key, and then right-click the Outlook icon in the notification area.Ĭlear the Use Guessmart and Secure Guessmart Authentication options. Run the Test E-mail AutoConfiguration tool to determine whether any automapped mailboxes exist: To determine whether this is the case, and to remove the automapped mailbox from Outlook, follow these steps. If the shared mailbox does not appear below Open these additional mailboxes, it is likely Automapped.

Select Close on the Account Settings window.

Select Yes to confirm that you want to remove the mailbox, and then select OK.

Select the shared mailbox, and then select Remove.

On the Advanced tab, you can view any manually added shared mailboxes below Open these additional mailboxes.

Select the Microsoft Exchange account, and then select Change.

Select File, Account Settings, and then select Account Settings.

Remove a shared mailbox that was opened as an additional mailbox manually You can determine how the shared mailbox was opened and remove the shared mailbox by following the steps in the following sections. If you have a shared mailbox open in Outlook, it was either manually added under Open these additional mailboxes or it was opened automatically because of automapping. If you have shared mailboxes open, you must also determine how they are opened, such as being opened manually as an additional mailbox or being opened because of AutoMapping.Ī shared mailbox appears below your own mailbox in the Folder Pane, as shown in the following screenshot.Ī shared folder appears below Shared, such as Shared Calendar or Shared Contacts, as shown in the following screenshot. To do this, you must first determine whether you have shared folders or shared mailboxes open.

Reduce the number of shared folders or mailboxes that you have open in Outlook. However, a faster computer that has a smaller mailbox and a fast network connection may be able to open 10 or more shared folders or mailboxes. A computer that has slower hardware, a large mailbox, and slow network connection may not be able to open more than five shared folders or mailboxes. The number of shared folders and mailboxes that you can have open without issues depends on several factors, including hardware, mailbox size, size of the shared folders or mailboxes, number of folders in a shared mailbox, item count in folders, and network speed. In the case with a shared calendar, modifications or additions cannot be made until the program is finished syncing updates. You have many shared folders or mailboxes, or both, open in Outlook. See the folder owner or your administrator to change your permissions. Right-click the folder, then click Properties to check your permissions for the folder. You don't have permission to create an entry in this folder. Additionally, when you make changes or additions to a calendar, you may receive the following error message: When you start Microsoft Outlook, switch folders, or synchronize email, you may experience slow performance. Applies to: Outlook 2019, Outlook 2016, Outlook 2013, Microsoft Outlook 2010, Outlook for Office 365.

Outlook performance issues when you have many shared folders or mailboxes open