How to ooo in outlook

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Last updated: April 4, 2026

Quick Answer: OOO, or 'Out of Office' replies in Outlook, are automatic responses sent to people who email you when you're unavailable. You can set them up through the 'Automatic Replies' feature in Outlook to inform senders of your absence and provide alternative contact information if necessary.

Key Facts

What is an 'Out of Office' (OOO) Reply in Outlook?

An 'Out of Office' (OOO) reply in Microsoft Outlook is an automated message that is sent to anyone who emails you while you have it enabled. It's a professional courtesy to let people know that you are currently unavailable to respond to their messages and when they might expect a reply. This feature is particularly useful for extended periods away from your desk, such as vacations, sick leave, or business trips.

Why Use Out of Office Replies?

Using OOO replies offers several benefits:

How to Set Up an Out of Office Reply in Outlook (Desktop Application)

Setting up an Out of Office reply in the Outlook desktop application is straightforward:

  1. Open Outlook: Launch the Outlook application on your computer.
  2. Go to File: Click on the 'File' tab in the top-left corner.
  3. Select Automatic Replies: In the 'Account Information' screen, you should see an option for 'Automatic Replies (Out of Office)'. Click on it. If you don't see this option, you might be using an IMAP or POP account, which doesn't support this feature directly, or you may need to connect to an Exchange server.
    • Note: For Exchange accounts, this option is readily available.
  4. Enable Automatic Replies: Check the box that says 'Send automatic replies'.
  5. Set Time Range (Optional but Recommended): Check the box for 'Only send during this time range' and specify your 'Start time' and 'End time'. This ensures the OOO reply is automatically turned off when you return.
  6. Compose Internal Reply: In the 'Inside My Organization' tab, type the message you want to send to colleagues within your company. Be clear and concise. For example: "Thank you for your email. I am currently out of the office and will respond to your message upon my return on [Date]. For urgent matters, please contact [Colleague's Name] at [Colleague's Email Address or Phone Number]."
  7. Compose External Reply: Click on the 'Outside My Organization' tab. Check the box 'Auto-reply to people outside my organization'. You can choose to reply to 'My Contacts only' or 'Anyone outside my organization'. It's generally recommended to send replies to 'Anyone outside my organization' unless you have specific privacy concerns. Compose a similar message to the one you created for internal senders.
  8. Save: Click 'OK' to save your settings. Your Out of Office reply is now active.

How to Set Up an Out of Office Reply in Outlook on the Web (Outlook.com / Microsoft 365)

If you use Outlook on the web or a Microsoft 365 account, the process is slightly different:

  1. Log In: Go to Outlook on the web (outlook.com or your organization's portal) and log in.
  2. Access Settings: Click the 'Settings' gear icon in the top-right corner.
  3. View All Outlook Settings: At the bottom of the settings pane, click 'View all Outlook settings'.
  4. Navigate to Automatic Replies: In the settings window, select 'Mail' > 'Automatic replies'.
  5. Enable Automatic Replies: Toggle the switch to 'On'.
  6. Set Time Range (Optional but Recommended): Check the box for 'Send replies only during a time range' and specify the start and end dates and times.
  7. Compose Messages: Write your message for 'Send replies outside my organization'. You can also check the box 'Send replies only to people inside my organization' to compose a separate internal message.
  8. Save: Click 'Save'.

Tips for Writing Effective OOO Messages

Troubleshooting Common Issues

No 'Automatic Replies' Option: This usually means your account is not connected to an Exchange server or is an IMAP/POP account. Contact your IT administrator if you believe you should have this functionality.

OOO Not Sending: Ensure you have enabled the feature and set a valid time range. Check if you've selected the correct recipients (internal/external). Sometimes, restarting Outlook can resolve minor glitches.

External Replies Not Sending: Verify that the 'Outside My Organization' tab is configured correctly and that the 'Auto-reply to people outside my organization' box is checked.

By utilizing Outlook's Out of Office feature, you can effectively manage your communications while away, ensuring that your contacts are informed and that important matters are addressed promptly.

Sources

  1. Send automatic replies with Outlook Out of Office Auto-Replyfair-use
  2. Reply settings in Outlook on the webfair-use

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