Set Out of Office in Outlook on the Web: Steps & Tips

To set an out-of-office reply in Outlook on the web, open Settings (the gear icon), search for Automatic replies or open that setting under Accounts, turn on automatic replies, write your message, and select Save. If you want the reply to start and stop automatically, enable the time-period option and enter the dates and times before saving.

Outlook calls this feature Automatic replies; it is also commonly called an out-of-office message or OOO. Setting it in the web version is useful because the reply is stored with the mailbox, so it can run even when your browser is closed and your computer is off. The exact settings shown can differ slightly between a work or school Microsoft 365 account and a personal Outlook.com account.

Where to find Automatic replies

Sign in to Outlook in a browser using the account whose mailbox should send the response. Select the gear-shaped Settings button near the top of the page. In many current Outlook web layouts, choose Accounts and then Automatic replies. If the setting is not immediately visible, use the search box in the Settings pane and search for “automatic replies.” Outlook.com may show the option under Mail instead, so the Settings search is a practical way to locate it when the menu structure differs.

Check the account name or profile before changing anything if you have several mailboxes open. An automatic reply is configured for the mailbox you selected, not necessarily every account displayed in Outlook. Shared mailboxes and accounts managed by an organization can have different permissions or policies. If the option is missing, you may need to switch accounts or ask your Microsoft 365 administrator whether automatic replies are available for that mailbox.

Turn on the reply and choose its dates

Once you open the Automatic replies page, switch on the control to enable replies. The simplest setup is to leave the schedule option off; Outlook then sends the response until you turn it off yourself. For a planned vacation or absence, select the option to send replies only during a time period. Enter a start and end date and time, check the displayed time zone, and save. Outlook should activate and stop the replies according to that schedule, even if you are not signed in at those times.

Open Settings and go to Automatic replies.
Turn on automatic replies for the correct mailbox.
For a scheduled absence, enable the time-period setting and enter the start and end times.
Write the message for people inside your organization, and decide whether to send a separate reply outside the organization.
Review any calendar or meeting options, then select Save.

For example, if you leave on Friday afternoon and return Wednesday morning, set the start time for Friday and the end time for Wednesday at the time you expect to resume work. Setting the end too early can leave messages unanswered on your first morning back; setting it too late can tell people you are away after you have returned. If you work across time zones, confirm the time zone shown in Outlook rather than assuming it matches the location of the person who will email you.

Write a useful out-of-office message

A good message states that you are unavailable, when you expect to return, and what the sender should do if the matter cannot wait. Keep it brief and specific. For example: “I’m away from Monday, 12 May, and will return on Thursday, 15 May. I’ll respond when I’m back. For urgent account questions, contact Jordan Lee at the support desk.” Use real dates rather than only saying “next week,” because a message may be read later or forwarded.

Decide how much information is appropriate for the recipients. An automatic reply does not need to explain why you are away, where you are going, or provide personal travel details. For an internal audience, naming a team or colleague can make the handoff clear. For external senders, a general response such as “Please contact our support address for urgent requests” may be safer and more useful than sharing a colleague’s direct contact details with everyone who emails you.

Do not promise an exact response time unless you can meet it. If you will check email occasionally, say so only if that is genuinely the plan. A message that says you will not monitor email sets a clearer expectation than one that suggests an immediate reply while you are away.

Internal and external replies

Outlook may let you write one message for people in your organization and a separate message for senders outside it. Internal replies are useful for coworkers who need to know who is covering a task. External replies can acknowledge receipt without exposing internal procedures. Depending on the account and settings, you may be able to send the external reply to all outside senders or only to people in your contacts. Choose the narrower option when appropriate, particularly if you receive messages from unfamiliar addresses.

External automatic replies can disclose information to people you do not know, so avoid including confidential project details, account data, or unnecessary personal information. An out-of-office reply is not a substitute for a secure handoff, and it should not contain passwords or sensitive instructions. Your organization may restrict external replies or apply its own mail-flow rules; if an external sender does not receive the message, an administrator may be able to confirm whether a policy is blocking it.

Calendar and meeting options

Some Outlook accounts show additional choices alongside automatic replies, such as blocking the calendar for the absence or declining meeting invitations during the selected period. The available wording and controls depend on the mailbox and current Outlook interface. Read each option before selecting it: blocking time on a calendar and declining invitations are different actions, and an option to cancel existing meetings can affect appointments that are already scheduled.

If you only want to tell email senders that you are away, you do not have to change meeting settings. If you do want Outlook to handle meetings, review your calendar before saving and consider whether existing appointments should be declined or simply left in place. A calendar status by itself does not necessarily send an email reply; configure Automatic replies separately when you want senders to receive a message.

How automatic replies behave

Automatic replies are generated by the mailbox, rather than by a message that you manually send to everyone in your address book. This is why the feature can continue to work while you are signed out of the browser. Outlook generally avoids sending the same automatic response repeatedly to the same person during one active absence, which helps prevent a loop of repeated replies. The precise behavior can depend on the mailbox service and organization policies.

Turning the feature on does not send a broadcast announcement to all contacts. A person normally receives the reply after sending you an email while automatic replies are active. Messages may be filtered, quarantined, or handled by other rules before reaching the mailbox, and those systems can affect whether a reply is generated. Do not use an automatic reply to confirm receipt of a high-priority request that needs a reliable, trackable acknowledgment.

Common problems and fixes

The setting is missing: Search Settings for Automatic replies, confirm that you are in the intended mailbox, and check with your administrator if it is a work or school account. The feature or its controls may be limited by account type or policy.
The reply does not start or stop when expected: Reopen the setting and check the schedule, date, time, and time zone. Also confirm that the saved setting is switched on.
People outside the organization do not receive it: Confirm that external replies are enabled and check whether the setting is limited to contacts. An organization policy may also restrict replies to external addresses.
The message looks wrong: Reopen the settings and review both the internal and external message boxes. Save changes after editing; closing the pane without saving may discard them.
Messages keep getting a reply after you return: Turn off automatic replies or correct the scheduled end time. If the schedule should have ended already, verify that you changed the right mailbox and time zone.

If the problem persists, check Outlook on the web in the same account and ask your organization’s help desk about mailbox policies. Avoid setting up a second automatic reply through an unrelated mail rule unless you understand how the two responses could interact; duplicate replies can confuse senders.

Outlook on the web compared with desktop Outlook

The purpose is the same in Outlook on the web and the desktop app: both can configure an absence message for a supported mailbox. The web version is convenient when you are away from your usual computer, and its mailbox-side schedule does not depend on keeping the browser open. Desktop Outlook may offer a different route to the setting, and features can vary by account type. If you configure the reply in one place, check the same mailbox’s status in the other app rather than creating a second rule.

For a Microsoft 365 work or school mailbox, automatic replies are typically handled by the Exchange mailbox service. For a personal Outlook.com mailbox, use the Outlook.com settings for that account. Other email accounts connected to Outlook may not expose the same automatic-reply controls, because the feature depends on the mail service and how the account is configured, not just on which Outlook interface you happen to open.

Frequently Asked Questions

Can I set an out-of-office reply in Outlook on the web from my phone?
Yes, open Outlook in a mobile browser and use the Settings menu if the full web settings are available. The Outlook mobile app also has account settings, but menus vary by app version and account. Confirm that you changed the correct mailbox and saved the dates and message.

Do I have to leave Outlook open for the reply to work?
No. For supported mailboxes, the automatic reply is configured on the mailbox service, so it can run while you are signed out or have closed the browser. A local rule that depends on a desktop computer being online is different from the mailbox’s Automatic replies setting.

Will Outlook send the reply to every email I receive?
No. It does not send a separate reply to every person in your address book. A sender generally receives an automatic response after emailing you during the active period, and Outlook normally limits repeated replies to the same sender during that absence.

Can I schedule the reply to turn off automatically?
Yes, if the time-period option is available for your mailbox. Enable it and set both the start and end date and time before saving. Check the time zone and return time so the message does not remain active longer than intended.

Why can’t I find Automatic replies in Settings?
Use the Settings search box and look for Automatic replies, then verify that you opened the right account. If it still does not appear, the mailbox type, permissions, or organization policy may not support the option. Contact the account administrator or email provider for help.

Try it: the Date Difference Calculator: days, months, years and weekdays between two dates, with the DATEDIF formulas.

More in How-to basics

Sources: Function behaviour and menu paths: Microsoft Support documentation for Excel. Method & sources

Spotted an error in this guide? Let us know.