Delay in updating the profile
If Outlook is running, this issue is eventually resolved by itself in 30 minute or more. This is especially true if the user has many connections to other servers, such as shared folders or shared mailboxes and calendars. This indicates that Mailbox Cache Age Limit is set to a value that is too high.
You can resolve this issue by reducing the cache expiration time. For more information, visit the following Microsoft website:
General information about why the mailbox size limits do not take effect immediately after a configuration change
To change the Mailbox Cache Age Limit value, follow these steps:
On the Exchange Server Mailbox servers, click Startstart button, type regedit in the Start Search box, and then press ENTER.
Locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
Right-click ParametersSystem, click New, and then click DWORD (32-bit) Value.
Type Mailbox Cache Age Limit, and then press ENTER.
Right-click Mailbox Cache Age Limit, and then click Modify.
On the Base tab, click Decimal.
In the Value data box, type a positive integer to specify the Mailbox Cache Age Limit in minutes. The default value is 2 hours (120 minutes).
Effect on Exchange Server to force client do change Mailbox cache age limit from 120Min (2 hour) to new valued.
