Future Out of Office in Outlook: How to Schedule It

To schedule a future out-of-office reply in Outlook, open Automatic Replies, turn on the option to send replies during a specific time period, enter your start and end dates and times, and save your message. The setting is available for most Microsoft 365 work or school accounts and Outlook.com accounts; the exact menu depends on which Outlook app you use.

Set the schedule before you leave, and check the time zone and end time carefully. Outlook will then send the reply during the period you selected, rather than starting it as soon as you save the setting. If your account is a POP or IMAP account, the built-in automatic-reply feature may not be available.

What You’ll Need

An Outlook account that supports automatic replies, such as a Microsoft 365 work or school account hosted on Exchange or an Outlook.com account.
Access to Outlook on the web, new Outlook or classic Outlook for Windows, or Outlook for Mac. The menu labels can vary slightly with app updates.
Your planned first and last day away, including the time replies should begin and stop. Check which time zone Outlook is using.
A short message for people inside your organization and, if needed, a separate message for external senders.

Step-by-Step

Open the automatic-reply settings in the Outlook version you use.
- New Outlook for Windows: Select the gear icon in the upper-right corner, choose Accounts, then Automatic replies. If the layout differs, use the Settings search box to search for “automatic replies.”
- Classic Outlook for Windows: Select File on the ribbon, then select Automatic Replies. If the button is missing, your account may not support the feature, or you may be using a non-Exchange account.
- Outlook on the web: Select the gear icon, choose View all Outlook settings, then go to Accounts > Automatic replies. Some work or school tenants show this under Mail > Automatic replies; use Settings search if needed.
- Outlook for Mac: Open the Outlook menu option for Tools > Automatic Replies. In some current layouts, open Outlook > Settings > Accounts, select the account, and choose Automatic replies.
Choose the account if Outlook asks. This matters when you have multiple mailboxes. Select the mailbox whose replies you want to schedule; setting replies for one account does not necessarily set them for another. If you have a shared mailbox, confirm that you have permission to change its automatic replies.
Turn on automatic replies and set the future period. In new Outlook or Outlook on the web, switch on Automatic replies and enable the option to send replies only during a time period. In classic Outlook for Windows, select Send automatic replies, then check Only send during this time range. Enter the start date and time and the end date and time. In Outlook for Mac, turn on automatic replies and select the option to send them during a specified period if it appears.
Set the start and end times deliberately. For example, if your leave begins Monday morning, set the start for Monday at the time you want replies to begin, not the night before by mistake. Set the end for when you expect to return or when you want replies to stop. A schedule ending at midnight can stop earlier or later than expected, depending on the displayed time and date, so read the full date-and-time values before saving.
Write the message for people in your organization. State that you are away, when you expect to return, and who can help while you are gone. Include only contact details that are appropriate for the recipients. For example: “I’m away from July 8 through July 12 and will respond when I return on July 15. For urgent billing questions, contact Jordan Lee at the service desk.” Avoid promising a reply on a specific date if that is uncertain.
Decide whether to reply to people outside your organization. If Outlook offers separate internal and external message areas, enable external replies only if appropriate. You may be able to reply to all external senders or only people in your contacts. A brief external message is usually safer because it may reach customers, mailing lists, or unfamiliar addresses. Do not include confidential details, private travel plans, or sensitive personal information.
Save or confirm the schedule. In new Outlook and Outlook on the web, select Save if shown. In classic Outlook for Windows, select OK. In Outlook for Mac, close or confirm the settings as prompted. If you do not see a save button, check whether the page saved automatically, then reopen the setting to confirm that both the time range and messages remain in place.
Verify the scheduled state. Reopen Automatic Replies and confirm that the feature is on and the future start and end values are correct. If the start date is in the future, Outlook may show that replies are scheduled rather than currently active. Keep the setting intact; there is no need to wait for the start date to arrive before configuring it.
Check your calendar and handoff details. Automatic replies do not create a calendar event or block your availability automatically in every setup. Add an out-of-office event to your calendar if coworkers need to see when you are away, and arrange mailbox coverage separately if someone else must handle messages.

Common Mistakes

Turning on replies without setting a time range. If you enable automatic replies but leave the schedule option unchecked, replies may start immediately and remain on until you turn them off. Select the time-period option and verify the dates before saving.
Entering the return date as the last day of absence without checking the time. If you return on Monday, an end time early Monday may stop replies before the workday begins. Choose an end time that matches when you want senders to stop receiving the message.
Assuming the schedule uses your current location’s time zone. Outlook and the mailbox service use the time zone configured for the account or organization. This can matter if you travel or work across regions. Review the displayed time zone in Outlook settings or ask your administrator if the mailbox is centrally managed.
Forgetting external replies. An internal message does not always apply to external senders. If customers or partners need a response, check whether external replies are separately enabled and written.
Putting too much information in the message. Automatic replies can be sent to people you do not know. Do not announce that a home or office will be unattended, share private itineraries, or expose internal project details.
Expecting the reply to go out repeatedly to the same person. Exchange-based automatic replies generally avoid sending the same automatic response over and over to one sender during the same period. A sender may not receive a fresh reply for every message they send.
Assuming the setting covers every mailbox. If you use several accounts, shared mailboxes, or aliases, check the relevant mailbox separately. A reply configured for your main account may not cover another account that appears in Outlook.

Tips

Use a clear subject and a useful next step. Keep the message short enough to scan. State when you will be back, whether you will check email, and whom to contact for urgent matters.
Use dates as well as relative wording. “I’m away July 8–12” is clearer than “I’m away next week,” especially for people who read the message later or live in another time zone.
Keep internal and external messages appropriate to each audience. Coworkers may need a team contact or project handoff. An external sender may need only a general return date and a public support address.
Set it early, then recheck after changes. If travel plans change, reopen the setting and update the schedule. Editing the message alone does not necessarily change the start or end time.
Use a test message wisely. You can ask a trusted colleague to send a message after the start time or use another account to check the response. Do not rely only on sending yourself a message; Outlook may not treat messages to the same mailbox like messages from an independent sender.
Remember that this is not a forwarding or delegation rule. Automatic replies tell senders you are away. They do not automatically forward mail, grant someone access, or guarantee that urgent requests are handled. Set up forwarding or delegate access separately if your organization permits it.

Troubleshooting

I cannot find Automatic Replies. First check whether you selected the correct mailbox and search Settings for “automatic replies.” In classic Outlook for Windows, look under File. If the control is still missing, the account may be POP or IMAP, or your administrator may manage the setting. Outlook.com and Microsoft 365 work or school accounts typically offer the feature, but account configuration can vary.

Replies are being sent before my leave starts. Reopen the settings and check whether the time-range option is selected. Confirm the start date includes the intended year and that the start time is in the future according to the mailbox time zone. If there is no time-range option, switch the setting off until you can configure a supported account or ask your administrator for help.

Replies did not start when expected. Check that automatic replies are enabled, the start time has passed in the account’s time zone, and the change was saved. If a sender has already received an automatic reply during the current period, they may not receive another one immediately. Ask someone who has not recently received a reply to send a new test message.

External senders are not receiving the message. Confirm that external replies are enabled and that the chosen audience includes the sender. Some organizations restrict external automatic replies by policy, even when the option appears in Outlook. If the setting is locked or the message still does not go out, contact your Microsoft 365 administrator.

The dates or messages do not stay saved. Reopen Automatic Replies after saving and check the values again. If Outlook is offline or having a connection problem, reconnect and retry. In classic Outlook, verify the correct account is selected. If you manage a shared mailbox, ask whether you have permission to update its settings.

My account is POP or IMAP. Classic Outlook’s Exchange automatic-reply feature is not available for every account type. A rule-based workaround may be possible in classic Outlook, but it can depend on Outlook remaining open and connected, and it may not behave like server-side automatic replies. Ask your email provider or administrator about a supported server-side option before relying on a workaround.

Frequently Asked Questions

Can I set an out-of-office reply before I leave?
Yes. Choose the option to send automatic replies during a time period, then enter a future start and end time. Save the setting in advance and verify that the schedule is shown.

Will Outlook send the reply immediately after I schedule it?
Not if you set a future start time and enable the time-period option. It should begin at the scheduled time. Without that option, replies may start as soon as you turn them on.

Can I schedule automatic replies from Outlook on the web?
Yes, for supported accounts. Open Settings, go to the Automatic Replies settings, enter the date range and message, and save. The exact category may differ between Outlook.com and work or school accounts.

Can I have different messages for coworkers and external senders?
Many Exchange-based Outlook accounts let you write one message for people inside your organization and another for external senders. External replies may be restricted by your organization, and the available audience options can vary.

Does Outlook automatically mark my calendar as out of office?
No. Scheduling an automatic email reply does not necessarily create a calendar event. Add an out-of-office event separately if you want colleagues to see your availability.

What happens if my return date changes?
Reopen Automatic Replies, adjust the end date or time, and save again. Check the updated schedule afterward. If you return earlier than planned, turn off automatic replies or change the end time so senders do not continue receiving an outdated message.

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

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

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