The fastest way to delay email in Outlook depends on which version you’re using. In new Outlook and Outlook on the web, click the small arrow next to Send and choose Schedule send. In classic Outlook for Windows, open the message, go to Options > Delay Delivery, and set a “Do not deliver before” time. And if you want Outlook to hold every message for a few minutes as a safety net, a simple rule does that.
Quick Troubleshooting Guide:
| Your situation | Best method | Where to click | Outlook must stay open? |
| New Outlook or Outlook on the web | Schedule send | Arrow next to Send > Schedule send | No, in most cases |
| Classic Outlook (Windows), one email | Delay Delivery | New Email > Options > Delay Delivery | Yes |
| Classic Outlook, every email | Rule with “defer delivery” | File > Manage Rules & Alerts > New Rule | Yes |
| Outlook for Mac | Schedule send / Send Later | Arrow next to Send, or Options tab | Depends on version |
| Need a quick hold, no setup | Work Offline | Send/Receive > Work Offline | Yes |
| Delayed email never sent | Check Outbox and connection | See troubleshooting section below | Usually the cause |
Each method works a little differently, and one of them has a catch that trips up a lot of people: in classic Outlook, a delayed message only goes out if Outlook is still open. Full steps for each follow.
First, Figure Out Which Outlook You Have
Microsoft now ships several versions of Outlook, and the buttons you see decide which method applies. A quick way to tell:
- New Outlook for Windows or Outlook on the web: a clean, rounded layout, and the Send button has a small dropdown arrow beside it. There’s usually a “New Outlook” toggle in the top corner of the classic app.
- Classic Outlook for Windows: the traditional ribbon with a File menu in the top left and tabs like Home, Send/Receive, and Folder.
- Outlook for Mac: a Mac menu bar across the top of the screen. The newer version resembles new Outlook; the older one has a ribbon with an Options tab in the compose window.
Note: Menu names can shift slightly between updates, and some work or school accounts have features limited by an administrator. If a button described below is missing, check the next section on professional help.
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How to Delay Sending an Email in New Outlook and Outlook on the Web
This is the easiest way to delay sending email in Outlook, and the one most people should try first.
Steps to schedule an email
- Write your message as usual: recipient, subject, body, attachments.
- Don’t click Send. Click the small arrow next to the Send button instead.
- Choose Schedule send.
- Pick one of the suggested times, or choose Custom time and set the exact date and time you want.
- Confirm. Your email is held until that time, then delivered.
A real-world example: you finish a client proposal at 11 p.m. but don’t want to look like you work through the night. Schedule it for 8:30 a.m. their time, and it lands at the top of their inbox when their day starts.
How to find, change, or cancel a scheduled email
Check your Drafts folder for the scheduled message. Open it to edit the content or change the time, or delete it to cancel. If you reschedule, confirm the new time before closing it, and make sure the message still shows as scheduled afterward.
Scheduling from the Outlook mobile app
Recent versions of the Outlook mobile app include a schedule option in the compose screen, usually tucked in the overflow or send menu. Because the exact placement changes by app version and platform, look there first. If you can’t find it, schedule the message from a computer or Outlook on the web instead.
How to Delay an Email in Outlook Classic (Windows) Using Delay Delivery
Classic Outlook has no Schedule send button. It uses a message property called Delay Delivery instead, which accomplishes the same thing.
Step-by-step: set Do not deliver before
- Click New Email and write your message.
- Open the Options tab in the message window.
- Click Delay Delivery (it’s in the More Options group).
- In the Properties box, under Delivery options, check Do not deliver before.
- Set the date and time you want the email to go out.
- Click Close, then click Send.
The message doesn’t disappear. It sits in your Outbox folder until the time you chose. That’s normal.
Warning: With classic Outlook, delayed messages are generally held on your computer. If Outlook is closed, your PC is asleep or shut down, or you’re offline at the scheduled time, the email waits until Outlook is running and connected again. Don’t rely on this method for anything truly time-critical unless you’ll leave Outlook open.
How to change or cancel a delayed email
- Open your Outbox folder.
- Double-click the delayed message.
- Go to Options > Delay Delivery.
- Change the time, or uncheck Do not deliver before to send it right away.
- Click Close, then click Send again. If you skip this last click, the message may just sit there.
To cancel completely, select the message in the Outbox and delete it. It won’t go out.
How to Send Email with a Delay from Outlook Automatically
Maybe you don’t want to schedule individual messages. You just want a safety net, so a typo or a wrong recipient gets caught before it leaves. A rule can delay every outgoing email in Outlook by a few minutes.
Create a delay rule in classic Outlook
- Go to File > Manage Rules & Alerts.
- On the E-mail Rules tab, click New Rule.
- Under “Start from a blank rule,” select Apply rule on messages I send, then click Next.
- Leave the conditions blank to apply the rule to everything. Outlook will ask you to confirm, so click Yes.
- Check defer delivery by a number of minutes.
- In the bottom box, click the underlined a number of and enter the delay, for example 2 or 5 minutes. Click OK.
- Click Next to add exceptions if you want (see the tip below), then Next again.
- Name the rule something like “Send delay buffer,” make sure Turn on this rule is checked, and click Finish.
Note: This rule action has a ceiling of 120 minutes. For anything longer, use Delay Delivery or Schedule send on that individual message.
Pro tip: Add an exception for urgent mail, such as “with specific words in the subject” (for example, URGENT), so important messages skip the delay.
Warning: This is a change to how every outgoing email behaves. If you’re in a rush and wonder why a message hasn’t arrived, the rule is why. Look in the Outbox before you assume something broke. To stop the behavior, open Manage Rules & Alerts and uncheck or delete the rule.
One more limitation: this kind of rule runs from your computer. Like Delay Delivery, it only works while Outlook is open.
How to Delay Email in Outlook for Mac
On the newer Outlook for Mac, the experience matches new Outlook: click the arrow next to Send and choose Schedule send. On the older version, open the Options tab in the compose window and look for Send Later. Both let you pick a date and time. Which one you see depends on your Outlook version, so if neither appears, update Outlook first.
Quick Trick: Hold an Email Using Work Offline
Need to pause a single email for a few minutes and don’t want to touch any settings? Classic Outlook has a workaround.
- Go to the Send/Receive tab and click Work Offline.
- Send your message. It lands in the Outbox and stays there.
- When you’re ready, click Work Offline again to go back online, and the message sends.
Warning: While Work Offline is on, Outlook won’t send or receive anything. Forgetting to turn it off is one of the most common reasons people think Outlook is broken.
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Delayed Outlook Email Didn’t Send? Causes and Fixes
If you set up a delay and the message never went out, work through these in order. The first three solve most cases.
| Symptom | Likely cause | Fix |
| Email still in Outbox after the set time | Outlook was closed or the PC was asleep | Open Outlook, stay connected, and check Send/Receive |
| Nothing sends or receives | Work Offline is turned on | Send/Receive tab > turn off Work Offline |
| Email sent too early or too late | Time or time zone mismatch | Check your computer’s date, time, and time zone |
| Edited message never left the Outbox | You didn’t click Send after editing | Open it, confirm the delay settings, click Send |
| All emails are delayed unexpectedly | A delay rule is active | File > Manage Rules & Alerts > disable or delete it |
1: Check whether Outlook was actually open
This is the leading cause with classic Outlook. If a delayed message is still in the Outbox, open Outlook, make sure you’re connected, and go to Send/Receive > Send/Receive All Folders. Messages whose delivery time has passed should go out.
2: Look for the Work Offline setting
On the Send/Receive tab, if the Work Offline button looks highlighted or the status bar says you’re working offline, click it to reconnect.
3: Confirm the date, time, and time zone
A delivery time set in the past sends right away, while one set far into the future waits. Double-check the time in Options > Delay Delivery. Also confirm your computer’s clock and time zone are correct, since Outlook relies on them.
4: Make sure your rule is turned on (or off)
Open File > Manage Rules & Alerts and look at the checkbox beside your delay rule. Unchecked means it isn’t running. Checked means it’s probably the reason a message is held back.
Advanced Fixes When Delay Still Isn’t Working
These are possibilities worth testing, not guaranteed cures, and they apply to classic Outlook.
Test in Safe Mode to rule out add-ins
- Close Outlook completely.
- Hold down the Ctrl key and open Outlook, then click Yes when asked about Safe Mode. (Alternatively, press Windows + R, type outlook.exe /safe, and press Enter.)
- Create a test email to yourself with a delay of a few minutes and see whether it sends on time.
If it works in Safe Mode, an add-in is likely interfering. Re-enable add-ins one at a time under File > Options > Add-ins to find the culprit.
Update or repair Office
Outdated or damaged installs can cause odd behavior. Update Office from File > Office Account > Update Options > Update Now. If problems persist, repair the installation through Windows Settings > Apps, selecting Microsoft Office or Microsoft 365, then Modify > Quick Repair.
Try a different method
If Delay Delivery keeps failing on a particular account, schedule the message from Outlook on the web instead. Since it isn’t tied to your desktop app, it avoids the “Outlook must stay open” issue in many cases.
How to Avoid Delayed-Email Headaches in the Future
- Use Schedule send when you have it. It’s simpler and less dependent on your computer.
- In classic Outlook, leave the app running and your PC awake until the delayed message goes out.
- Check the Outbox after scheduling, to confirm the message is waiting there as expected.
- Don’t delay time-sensitive messages such as deadlines, invoices due today, or legal notices. Send them directly.
- Keep a short rule buffer, like 2 to 5 minutes, if you want protection against embarrassing mistakes without slowing your email noticeably.
- Remember what you’ve set up. An old delay rule can quietly hold messages for months.
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When to Seek Professional Help
Contact your IT administrator or Microsoft support if:
- Schedule send or Delay Delivery is missing entirely. On work or school accounts, administrators can limit features.
- Messages remain stuck in the Outbox even after you’ve checked connection, Work Offline, and rules.
- You see error messages when sending that aren’t resolved by restarting Outlook.
- Delayed emails go out at the wrong times for multiple users, which points to a server or policy issue instead of your own setup.
Conclusion
If you have Schedule send, use it. It’s the cleanest answer to how to delay email in Outlook, and it doesn’t depend on your PC staying on. If you’re on classic Outlook, Delay Delivery or a short rule works well, as long as you keep Outlook open until the message is gone. The next time you queue up a message for tomorrow morning, glance at your Outbox or Drafts folder before you log off.
Frequently Asked Questions:
It depends on the method. Scheduled messages in new Outlook and Outlook on the web are generally held by the mail service, so your computer doesn’t need to stay on. With classic Outlook’s Delay Delivery or a delay rule, the message usually waits in your Outbox, so Outlook needs to be running and connected at the scheduled time.
With Schedule send or Delay Delivery, you choose any future date and time you set. A delay rule is capped at 120 minutes. For longer waits, use one of the first two methods.
For classic Outlook, open the Outbox, then either delete the message or reopen it, uncheck “Do not deliver before” under Delay Delivery, and send. For scheduled messages in new Outlook or on the web, open the message from Drafts and delete it or change its time.
Recent versions of the Outlook mobile app include a schedule option when composing, though the location of the setting can differ by platform and version. If you don’t see it, schedule the email from a computer or Outlook on the web.
Delaying holds the message until a time you choose. Undo send gives you a very brief window right after you click Send to pull the message back. Newer versions of Outlook include an Undo send setting with a short timer, though availability varies by version, so check your settings. A delay rule works as a longer safety net in classic Outlook.