Set Out of Office in Outlook for Mac: A Step-by-Step Guide

To set an out-of-office reply in Outlook for Mac, open Tools > Automatic Replies, choose your Exchange or Microsoft 365 account, turn on automatic replies, and enter your message. You can also schedule when replies start and stop and decide whether people outside your organization receive one. The steps work on a MacBook; the exact labels can vary slightly by Outlook version.

Automatic replies let people know you are away and when they can expect a response. Set them before you leave, and remember to turn them off if you do not schedule an end time.

What You’ll Need

Outlook for Mac, signed in to the account you want to manage. Keep Outlook updated if possible, since menu names and dialog layouts can differ between versions.
An Exchange or Microsoft 365 work or school account. Outlook’s built-in Automatic Replies feature generally requires a mailbox hosted on Exchange. If you use Gmail, IMAP, or another provider, see the troubleshooting section for alternatives.
Your away dates and message text. Decide whether you want the reply sent to people outside your organization as well as colleagues.
Internet access while setting up the reply. Once enabled for an Exchange mailbox, scheduled replies are normally handled by the mail service, so your MacBook does not need to stay open.

Step-by-Step

Open Outlook and check the account. Launch Outlook on your MacBook and make sure you are signed in to the mailbox that should send the reply. If Outlook shows more than one account, note which one you are changing; automatic replies are configured separately for each eligible mailbox.
Open the automatic-reply controls. From the macOS menu bar at the top of the screen, choose Tools > Automatic Replies. The menu bar is outside the Outlook message window. In some older Outlook for Mac versions, the command may be called Out of Office instead. If you do not see either command, check the account type and use the troubleshooting steps below.
Select the mailbox, if prompted. If Outlook asks which account to manage, select the correct Exchange or Microsoft 365 mailbox. Check the account address shown in the dialog before changing settings, particularly if you have both personal and work accounts open.
Switch on automatic replies. Turn on Send automatic replies or select the equivalent option in your version. The reply is not active merely because text appears in the message box; confirm the on/off control is enabled before closing the dialog.
Set a start and end time if you want the reply to run automatically. Select Send replies only during this time period or the similarly named scheduling option. Choose the start date and time and the end date and time. Use the times for your mailbox’s displayed time zone, and allow for the time zone of colleagues or clients who may be contacting you. If you leave scheduling off, the reply may remain active until you turn it off yourself.
Write the message for people in your organization. In the internal message area, enter a concise note. Include the dates you will be away, whether you will have limited access to email, and what to do for urgent matters. For example: I’m away from November 10 through November 14 and will reply when I return. For urgent support, contact the service desk. Adjust the example to match your actual plans and workplace procedures.
Choose whether to reply to external senders. If the dialog offers Send replies outside my organization, turn it on only if you want non-colleagues to receive a response. Depending on your Outlook version, you may be able to send to all external senders or only external contacts. Add a separate external message if the dialog provides one; it can be more general and should not reveal confidential information.
Save or confirm the settings. Select OK, Save, or the confirmation button shown in the dialog. Wait for the dialog to close, then reopen Tools > Automatic Replies and verify that the switch, dates, and message are correct. If you chose a scheduled start in the future, the reply may not send until that time.
Test the setup sensibly. If the timing matters, check the automatic-reply status in Outlook or Outlook on the web. You can ask a colleague to confirm the reply after it is active, but do not repeatedly send test messages to the same mailbox: many Exchange configurations send only one automatic reply to a sender during a period rather than replying to every message.

Common Mistakes

Setting the reply on the wrong account: A reply configured for one mailbox does not automatically cover another account in Outlook. Check the selected address in the Automatic Replies dialog.
Forgetting the end time: If you do not enable a schedule with an end date, you may continue sending the message after you return. Either schedule the period or set a reminder to switch the feature off.
Assuming a draft is active: Typing a message does not necessarily enable the feature. Confirm that the send-automatic-replies control is on and that you saved the changes.
Leaving external replies enabled without reviewing the text: External messages can reach customers, vendors, and people you do not know. Avoid sharing travel details, personal contact information, or sensitive internal processes.
Expecting a reply for every incoming email: Mail services may limit repeated automatic replies to the same sender. This helps prevent reply loops and does not mean the setting is broken.
Expecting the feature to work for every email provider: Outlook is an email client, and not every connected account supports the same server-side automatic-reply controls. A Gmail or IMAP account may need its provider’s own vacation-reply setting.

Tips

Keep the message useful and brief. State that you are away, give a return date if you know it, and name an alternative contact or shared team address for urgent requests. Do not promise a response time you cannot meet.
Use separate internal and external messages when available. Coworkers may need a team handoff, while external senders usually need only a return date and an appropriate public contact route.
Use the schedule for planned leave. Scheduling reduces the chance that you forget to enable the reply or leave it running. Check the selected start and end carefully, especially if your calendar and mailbox use different time zones.
Check the setting before closing your MacBook. For a supported Exchange or Microsoft 365 mailbox, the server typically handles an enabled automatic reply even when Outlook is closed. This differs from some local rules or third-party add-ins that may require Outlook to be running.
Turn it off early if plans change. Reopen the same Automatic Replies dialog and switch off replies, or adjust the scheduled end time. Do not rely on an old end date if you have changed your plans.

Troubleshooting

There is no Automatic Replies command. Confirm that you are using Outlook for Mac and that the selected account is an Exchange or Microsoft 365 mailbox. Gmail, IMAP, and some other account types may not offer the feature in Outlook. For a work or school account, open Outlook on the web in a browser, sign in to the same mailbox, and look under Settings > Accounts > Automatic replies or search Settings for “automatic replies.” The web interface may vary by organization. For Gmail, use Gmail’s vacation responder; for another provider, use its own out-of-office or vacation setting.

The reply is not being sent. Reopen the dialog and confirm automatic replies are enabled, the start time has passed, and the end time has not passed. Check that you changed the intended mailbox. Send a message from a different address if you need to verify delivery, because repeated messages from the same sender may not trigger repeated replies. Ask your Microsoft 365 administrator whether an organization policy, mail flow rule, or mailbox issue is affecting automatic replies.

The dates or times seem wrong. Review the selected dates and time zone on your Mac and in the mailbox settings. If you are scheduling across regions, convert the intended local start and end times before saving. If Outlook does not accept the schedule or shows unexpected values, set the reply on Outlook on the web and verify it there.

External senders are not receiving a reply. Check whether the external-reply option is enabled and whether it is restricted to external contacts. Some organizations block or limit automatic replies to addresses outside the organization. If the option is unavailable or disabled, contact your Microsoft 365 administrator rather than trying to bypass the policy.

The reply continues after you return. Open the Automatic Replies dialog for the relevant account and switch the feature off. If it appears off in Outlook but messages still receive a reply, check the mailbox in Outlook on the web as well; you may have changed a different account or client setting.

Frequently Asked Questions

Does Outlook for Mac need to stay open for out-of-office replies?
For a supported Exchange or Microsoft 365 mailbox, automatic replies are usually managed by the mail server, so Outlook and your MacBook can be closed. Provider-specific tools or local rules may work differently.

Can I set an out-of-office reply for Gmail in Outlook for Mac?
Outlook may not show its Exchange automatic-reply controls for a Gmail account. Set the vacation responder in Gmail instead, then check it in Gmail to confirm the dates and message.

Can I send different messages to coworkers and outside contacts?
Many Exchange versions provide separate internal and external message fields. If your dialog shows only one message field, or no external option, use the controls available for your account or ask your administrator about the organization’s configuration.

Will every person who emails me receive an automatic reply?
Not necessarily. Exchange commonly avoids sending repeated automatic replies to the same sender during a period, and organizational settings can further limit replies. It is not a substitute for a delivery confirmation.

How do I turn off the reply when I come back?
Choose Tools > Automatic Replies, select the correct mailbox, and turn off Send automatic replies. If you set an end time, it should stop then, but verify the status if your plans changed.

Is the MacBook menu path different from Outlook for Windows?
Yes. On Mac, use the macOS menu bar and choose Tools > Automatic Replies. In Outlook for Windows, the command is commonly under File > Automatic Replies for supported Exchange accounts.

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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