How to turn on Out of Office in Outlook

Last updated: · By the DeskHowTo editorial team
Quick answer

In Outlook for Microsoft 365, open File > Automatic Replies (Windows) or Home > ... > Automatic Replies. Turn on auto-replies, set a date range, and write the message.

On Outlook on the web: Settings > Mail > Automatic replies. Mobile apps vary - some only toggle a reply configured on the server.

Applies to Outlook for Microsoft 365 / Outlook 2021+, Outlook on the web (outlook.office.com), and many Microsoft 365 mailboxes. IMAP/personal accounts may only support client-side rules.

Turn on Automatic Replies

Outlook desktop (Windows)

  1. Open Outlook and select File.
  2. Click Automatic Replies (Out of Office).
  3. Choose Send automatic replies and optionally Only send during this time range.
  4. Write the Inside my organization message; optionally set Outside my organization.
  5. Click OK.

Outlook on the web

  1. Go to outlook.office.com and open Settings (gear).
  2. Search for Automatic replies or go to Mail > Automatic replies.
  3. Turn Automatic replies on, set schedule and message, Save.

Turn off later

  1. Return to the same Automatic Replies page and turn it off, or let the end date expire.

Inside vs outside organization

Inside replies go to coworkers on your Microsoft 365/Exchange tenant. Outside replies go to external senders - enable only if your company allows it.

Not seeing Automatic Replies?

  • Personal Gmail connected via IMAP may not support server Out of Office.
  • Work accounts sometimes hide the feature via policy - ask IT.
  • Classic Outlook vs new Outlook menus differ slightly; search Automatic Replies in the app.

Frequently asked questions

Can I schedule it in advance?

Yes - set a start and end date/time.

Does it reply to every email repeatedly?

Exchange usually replies once per sender per session window.

Mobile only?

Set it on web/desktop for reliability; mobile may only toggle an existing server reply.

Sources checked: Microsoft Outlook support. Verified October 2026.