How to Schedule an Email in Outlook Web App for Later

To schedule an email in Outlook on the web, compose your message, select the arrow beside Send, choose Schedule send, pick a suggested time or set a custom one, then confirm. The message is held until that time, so you do not need to keep Outlook open. You will need access to an Outlook.com or Microsoft 365 account in a web browser, and the scheduling option must be available for that account.

What You’ll Need

An internet-connected browser and access to Outlook on the web, such as Outlook.com or your organization’s Microsoft 365 Outlook page.
The recipient’s email address, plus the subject and message you want to send. You can also add attachments before scheduling.
A delivery date and time. Check the time zone shown by Outlook, especially if you are travelling or scheduling across regions.

Step-by-Step

Open Outlook and start a message. Sign in to Outlook on the web and select New mail (sometimes shown as New message) near the top of the page. A new-message pane or window will open. If you are replying to an existing email, open it and select Reply or Forward instead; the scheduling controls are used the same way.
Address the email and write its contents. Enter the recipient in the To field. Add any people who should receive a copy in Cc or Bcc, then add a concise subject and write the message. Check the recipient carefully, particularly if Outlook offers similarly named contacts. Scheduling does not change who receives the message or let you correct a wrong address after delivery.
Add attachments and review the message. Attach any files now using the paperclip or Attach control, and wait until each file has finished uploading. Confirm that the attachment is the correct version and that it is within your organization’s size limits. Read through the subject, recipient fields, links, and message body. A scheduled message is still a normal email: it can be delivered with typos or missing files if you do not check it first.
Open the send options. Find the small arrow next to the Send button at the bottom of the compose pane. Select the arrow, not the main Send button. If you click Send itself, Outlook will send the message immediately. In some versions of the web interface, the label or position may look slightly different, but the schedule command is in the send-options menu.
Select Schedule send. In the menu, choose Schedule send. Outlook may also label this option Send later in some interface versions. A scheduling panel will offer suggested delivery times, such as a later time that day or the next morning, and an option to choose a custom time. If the option is missing, see Troubleshooting below before sending the message.
Choose when the email should go out. Select one of the suggested times if it suits your needs. To choose a different time, select the custom-time option, set the date and time in the picker, and review the displayed choice. Choose a time in the future and allow a little margin for time-zone differences, work hours, or a deadline. The available suggestions can change according to the current time and Outlook version.
Confirm the schedule. Select the button in the scheduling panel that confirms the delivery, often labelled Send or Schedule. Do not close the compose window before confirming. Outlook should show a confirmation that the email is scheduled. If you do not see one, check the message list or Drafts before assuming the email is queued; avoid clicking the main Send button as a second attempt unless you intend to send it right away.
Check or change it before delivery, if needed. Look in Drafts for the scheduled message. Outlook on the web commonly keeps it there until the scheduled time. Open the message to review or change the text, recipient, attachment, or time. If you need to stop it from going out, open it and use the available cancel-schedule or cancel-send control; it should return to an editable draft. The exact control can vary, so read the confirmation prompt before choosing an action. After a message has been delivered, you cannot retrieve it from the recipient’s inbox using this scheduling feature.

Common Mistakes

Choosing Send instead of the arrow: The main button sends immediately. Use the arrow beside it to open the menu, then select Schedule send. Pause to check the time shown in the confirmation before you commit.

Misreading the time or date: A time such as 8:00 can mean morning or evening, and a date near midnight can be easy to misread. Check the full date and time, not just the suggested label. If you are scheduling for a colleague in another region, convert the time and confirm it with them rather than relying on an assumption.

Leaving out a recipient or attachment: The schedule command does not warn you about every omission. Verify the To, Cc, and Bcc fields, subject, and attachment list before scheduling. If you later edit the message, check the time again as well as the content.

Assuming a scheduled message is already in Sent Items: A message waiting to send may remain in Drafts until its delivery time. That does not necessarily mean scheduling failed. Look for the message and its scheduled status, and use the displayed status rather than relying on a folder name alone.

Expecting to recall it after delivery: Scheduling is not the same as undoing a sent email. Once Outlook has sent the message, the recipient’s service may deliver it immediately. To prevent a future message from going out, cancel or edit it before the scheduled time.

Tips

Schedule routine messages for a time when the recipient is likely to read them, but avoid treating a suggested time as a guarantee that someone will be online. For an important announcement, schedule it shortly before the intended moment rather than days in advance, so there is less opportunity for details to become outdated.

Keep the subject specific enough to identify the message when you find it later. For example, “Friday project update” is easier to spot in Drafts than “Update.” If you schedule several messages, open each one and verify its recipient and time separately; a quick scan of a folder can make two similar drafts easy to confuse.

For time-sensitive work, allow a buffer. Scheduling an email does not guarantee that the recipient’s mail server will display it at precisely the same second, and delivery can be affected by service or network issues outside your control. If the message contains a deadline, consider stating the deadline and its time zone in the body.

Use a test message to yourself if you are unfamiliar with the interface or unsure which account is signed in. That helps confirm that you can find the schedule option and understand the confirmation without risking an important message. Avoid sending sensitive information to yourself unless your organization permits it.

Troubleshooting

Schedule send is missing: Confirm that you are using Outlook in a browser and that you have opened the arrow beside Send, rather than looking elsewhere in the compose window. Refresh the page and try again. If the option still does not appear, your account type, organization settings, or current interface may not support it. Check with your Microsoft 365 administrator or use an approved alternative; do not assume that a normal send is scheduled.

The message appears to have disappeared: Check Drafts first and search for a distinctive word from the subject. Allow the page a moment to update and refresh the folder. If Outlook showed a scheduling confirmation but the item is not visible, check the account and mailbox you used, including any relevant folders or filters. If there was no confirmation, reopen the compose area or check Drafts before trying again to avoid accidentally sending a duplicate.

The email did not arrive at the expected time: Find the message in Drafts and inspect its scheduled status and displayed delivery time. Check that the time zone and date were correct, and make sure the message was not edited, cancelled, or left as an unscheduled draft. If it appears to have been sent, look in Sent Items and check with the recipient about spam or quarantine folders. For a work account, contact your administrator if the message remains queued or fails to send.

You need to change or stop the email: Open the scheduled draft before its send time. Edit it or use the cancel option shown by Outlook, then confirm the change. If the email is already in Sent Items, it has been sent; scheduling controls cannot recall it from other mail systems. Contact the recipient promptly if a correction is needed.

The time picker will not accept your choice: Make sure the selected date and time are in the future, then try selecting the date before entering the time. If Outlook has been open for a long time, refresh the page and set the schedule again. Verify the displayed time after refreshing, particularly if your device or account time zone recently changed.

Frequently Asked Questions

Can I schedule an email in Outlook on the web?
Yes. In a new message, use the arrow beside Send, select Schedule send, choose a suggested or custom delivery time, and confirm.

Does Outlook have to be open for a scheduled email to send?
No. Once Outlook confirms the schedule, the message is queued by the service, so you can close the browser or turn off your computer. Keep in mind that an organization’s account settings or service issues can affect delivery.

Where can I find an email I scheduled?
Check Drafts. Outlook on the web commonly keeps scheduled messages there until delivery. Open the item to confirm its status or make changes. Folder display can differ between account and interface versions.

Can I edit or cancel a scheduled email?
Usually, yes, as long as it has not been sent. Open the scheduled message from Drafts, then use the available edit or cancel-schedule control. Confirm the change and check that the new time or draft status is correct.

Can I schedule an email to send at a custom time?
Yes. Choose the custom-time option in the scheduling panel, select a future date and time, and verify the displayed value before confirming. Suggested time choices are optional.

Will the recipient know that I scheduled the email?
Outlook does not normally add a special notice to the email saying that you scheduled it. The message arrives as a regular email when it is sent, although delivery time can differ slightly from the time you selected.

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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