Out of Office Assistant missing

I'm using an Exchange account but the Out of Office command in not showing in the Tools menu.
I tried customizing and resetting the Tools menu manually but the Out of Office Assistant still does not show.

How can I get it back?

Out of Office buttonThe most common reason for this to happen is when the “Exchange Extensions commands” add-in gets disabled in Outlook.

There are 2 locations where this add-in might got disabled.

Enabling the add-in

If the add-in got disabled, then you can enable it in again in the following way;

  • Outlook 2003 and previous
    Tools-> Options…-> tab Other-> button Advanced Options…-> button Add-In Manager…
  • Outlook 2007
    Tools-> Trust Center…-> section Add-ins-> set dropdown list at bottom to: Exchange Client Extensions-> button Go…

OOF add-in
Both the Exchange Extensions add-ins need to be enabled

Note: In Outlook 2010 and later, the Out of Office Assistant is no longer controlled via an add-in. You can find it in File-> section Info-> Automatic Replies

Disabled Items list

If Outlook has crashed upon shutdown, it could be that the add-in got disabled automatically by Outlook. In that case you’ll find it in the Disabled Items list. You can get to this dialog in the following way;

  • Outlook 2003 and previous
    Help-> About Microsoft Office Outlook -> button Disabled Items…
  • Outlook 2007
    Help-> Disabled Items…

Note: The Out of Office Assistant is only available when you are connecting to Exchange. To get similar functionality like this for POP3, IMAP and Outlook Connector accounts see this guide instead.

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