Introduction
Scheduling an email in Outlook sounds simple — until you realize the steps differ depending on which version you're running. The feature has gone by two names over the years: "Delay Delivery" in Classic Outlook and "Schedule Send" in the newer interface. With over 400 million active users and an average of 117 emails per day, getting the timing right matters. Research shows 29% of active workers check their inboxes by 10 PM — scheduled sending lets you respect boundaries while ensuring messages land at the right moment.
The feature exists across all Outlook versions, but the exact steps vary between New Outlook, Classic Outlook, Web, Mac, and Mobile. A few setup conditions must be met for it to work reliably — most notably, scheduled sending only supports Microsoft 365, Exchange, and Outlook.com accounts, not IMAP or POP connections.
This guide covers the exact steps for every Outlook version in 2026, when to use scheduled sending, what can go wrong, and when to consider a smarter alternative.
TL;DR
- New Outlook (desktop and web): Click the dropdown arrow next to Send, select "Schedule Send," pick a time, and confirm
- Classic Outlook: Use "Delay Delivery" under the Options tab; Outlook must stay open until the scheduled time
- Mac and Mobile: Use the same "Schedule Send" dropdown; emails sit in Drafts on Mac or a Scheduled folder on mobile
- Supported accounts: Microsoft 365, Exchange, and Outlook.com only — IMAP and POP are not supported
- Recipient visibility: Recipients never know an email was scheduled
How to Schedule an Email in Outlook in 2026
The steps below are organized by Outlook version. Identify which version you're using before proceeding: if you see a "Schedule Send" dropdown arrow next to the Send button, you're on New Outlook or Web; if you see an "Options" tab in the ribbon, you're on Classic Outlook.
Here's a quick reference before diving into each version:
| Version | Where Email Waits | Computer Must Be On? |
|---|---|---|
| New Outlook / Web | Drafts folder | No (server-side) |
| Classic Outlook (Windows) | Outbox folder | Yes |
| Outlook on Mac | Drafts folder | No |
| Outlook Mobile | Scheduled folder | No (server-side) |
New Outlook (Desktop App and Web)
New Outlook desktop and Outlook Web share the same interface. The steps are identical across both:
- Compose your email as usual, including recipients, subject line, and body
- Click the small downward arrow (⌄) directly next to the Send button to open the scheduling menu
- Select "Schedule Send" from the dropdown menu
- Choose your send time:
- Select from suggested options (tomorrow morning, this afternoon)
- OR select "Custom time" to enter any specific date and time
- Click Send—the email moves to the Drafts folder and sends automatically at the scheduled time
Important: Web version sends even if your computer is off (server-side). Desktop version sends as long as Outlook is open and connected.
To edit or cancel:
- Go to Drafts and open the scheduled email
- Click the pencil/edit icon
- Update the send time, click "Send Now" to send immediately, or delete the email to cancel
Classic Outlook (Windows Desktop — Legacy)
Classic Outlook has no "Schedule Send" button. Instead, it uses Delay Delivery under the Options tab — a distinction that trips up many users switching from the new interface.
- Compose your email as usual
- Go to the Options tab in the ribbon and click "Delay Delivery"
- In the Delivery Options dialog, check the "Do not deliver before" checkbox
- Set your desired date and time, then click Close
- Click Send—the email sits in the Outbox folder (not Drafts) until the scheduled time
Critical requirement: Outlook must stay open and your computer must be online at the scheduled send time. Close Outlook or go offline and the email holds until you reconnect.
To send immediately or cancel:
- Open the email from your Outbox
- Go to Options → Delay Delivery
- Uncheck "Do not deliver before"
- Click Close, then Send
Outlook on Mac
Mac uses the same Schedule Send workflow as New Outlook — if you're comfortable with that interface, this will feel familiar.
- After composing your email, click the dropdown arrow next to the Send button
- Select "Schedule Send"
- Choose your desired date and time in the dialog box
- Click OK — the email is saved to your Drafts folder
To modify the schedule: Open the email from Drafts, select "Modify Email," and update the time.
Outlook Mobile (iOS and Android)
Mobile scheduling runs server-side, meaning the email sends at the scheduled time even if your phone is off or the app is closed.
- Tap "New Mail" to compose your message
- Find the Schedule Send icon in the bottom toolbar — it looks like a paper plane with a clock, next to the blue Send arrow
- Tap the icon to pick a suggested time (such as "Tomorrow morning") or select "Choose a time" for a custom date and time
- Tap Send or Schedule — the email saves to the app's Scheduled folder
When Should You Schedule Emails in Outlook?
Scheduled sending is most valuable when timing directly affects whether your email gets read. Sending at the wrong moment—late Friday night, during a recipient's off-hours—often means your message gets buried in their inbox.
Strongest use cases:
- Reach contacts in different time zones without working odd hours yourself
- Time client-facing emails to land at the start of their business day (9 AM–12 PM in the recipient's timezone yields highest engagement)
- Queue follow-ups in advance when you know you'll be unavailable
- Stay compliant with Right to Disconnect laws in France, Spain, Portugal, Slovakia, Australia, and Ontario that restrict after-hours work communication
That said, scheduled sending isn't always the right call.
When NOT to schedule:
- Urgent messages requiring immediate action
- Time-sensitive details that may change before delivery (pricing, availability)
- Situations where recipients expect a quick reply—delays can frustrate rather than impress
Common Mistakes When Scheduling Emails in Outlook
Three mistakes catch most users off guard. Here's what to watch for before you schedule anything:
Wrong method for your version — "Delay Delivery" lives in Classic Outlook; "Schedule Send" is in New Outlook. Looking for one in the other version turns up nothing. Confirm which version you're running before following any steps.
Leaving Classic Outlook open (or not) — Classic Outlook processes scheduled sends locally, not on Microsoft's servers. If the app is closed or your computer is off at send time, the email sits unsent in your Outbox. Web Outlook doesn't have this limitation.
Using IMAP or POP accounts — Schedule Send only works with Microsoft 365, Exchange, and Outlook.com accounts. Gmail or Yahoo connected through Outlook via IMAP/POP have no workaround. For those accounts, schedule directly from the web version of that service instead.
Troubleshooting: Schedule Send Issues in Outlook
Schedule Send problems in Outlook usually trace back to one of four root causes: the wrong interface, an outdated version, connectivity issues, or a time zone mismatch. Here's how to diagnose and fix each one.
"Schedule Send" option is missing
Why this happens:
- You're on Classic Outlook (where the feature is called "Delay Delivery" under the Options tab)
- Your Outlook version is outdated and needs updating
- You're using a connected IMAP/POP account that doesn't support the feature
How to fix it:
- Confirm your Outlook version: File → Office Account → Update Options → Update Now
- Verify your account type: Settings → Account to ensure it's Microsoft 365, Exchange, or Outlook.com
- If using IMAP, switch to web Outlook at outlook.com instead
Scheduled email didn't send at the right time
Root cause:
- On Classic or New Outlook desktop, the computer was off or Outlook was closed at the scheduled send time
- On Web or Mobile, this is rare — most often the email was never properly scheduled (Send was clicked instead of Schedule Send)
Steps to resolve:
- Look in the Outbox (Classic) or Drafts (New Outlook/Web) — if the email is still there, Outlook was likely offline
- Reconnect to the internet and the email should send automatically
- For Web, check Drafts to confirm the email was actually scheduled
Scheduled email stuck in the Outbox (Classic Outlook)
Why this happens:
- Outlook lost connection at the scheduled time
- The email was flagged due to a large attachment exceeding the size limit (typically 25 MB for Microsoft 365, 20 MB for Outlook.com free accounts)
How to fix it:
- Switch to Offline mode: Send/Receive tab → Work Offline
- Delete the stuck email from the Outbox
- Recompose and reschedule
- For large attachments, upload the file to OneDrive and insert a sharing link instead
Scheduled time is wrong by one hour
Root cause: A time zone mismatch in Outlook settings — common after daylight saving time changes.
Steps to resolve:
- Go to Settings → Calendar → Time zone and confirm it reflects your current location
- Verify your computer's system clock is accurate
When Outlook's Scheduling Isn't Enough
Outlook's Schedule Send feature handles individual email timing well, but lacks the tools professionals need to manage high-volume communication intelligently. There's no AI-driven timing suggestion, no follow-up automation tied to whether your email was read, no tracking of recipient engagement, and no way to personalize or sequence emails at scale.
For professionals who need more than a timed send, NewMail AI works directly inside Outlook (and Gmail and Apple Mail) to add an intelligent layer on top of what Outlook already does. The platform processes context ephemerally with zero email retention by default—a natural fit for professionals in regulated industries who need productivity without privacy trade-offs.
NewMail learns your writing style in 60 seconds, then handles the rest without storing your email content:
- Generates context-aware draft replies that match your tone
- Prioritizes your inbox based on conversation meaning, not just sender
- Sends polite follow-up reminders when recipients don't respond
- Extracts tasks and flags action items automatically
For teams of 20 or more—or executives managing high email volumes—pairing Outlook's built-in scheduling with NewMail AI cuts the time spent on routine email tasks through automated drafting, prioritization, and follow-up tracking.
Frequently Asked Questions
How do I schedule an Outlook email to send at a certain time?
In New Outlook and Web, click the dropdown arrow next to Send and select "Schedule Send." In Classic Outlook, go to Options → Delay Delivery and set a "Do not deliver before" date and time.
Why don't I have the schedule send option in Outlook?
Three common culprits:
- Wrong version: Classic Outlook calls it "Delay Delivery," not "Schedule Send"
- Wrong account type: Only Microsoft 365, Exchange, and Outlook.com accounts support scheduled sending — IMAP/POP accounts do not
- Outdated app: An Outlook update may be needed to unlock the feature
Can I schedule emails in Outlook Web?
Web Outlook supports Schedule Send using the same dropdown arrow next to the Send button. Because it runs server-side, the email sends on time even if your computer is off.
How do I get to scheduled emails in Outlook?
The location depends on your version: New Outlook, Web, and Mac store scheduled emails in the Drafts folder; Classic Outlook stores them in the Outbox; the Outlook mobile app has a dedicated Scheduled folder.
Is there a way to schedule a follow-up email in Outlook?
You can manually queue a follow-up using Schedule Send or Delay Delivery, but Outlook has no automatic follow-up trigger. For follow-ups tied to whether the original email was read or replied to, you'll need a third-party tool.
Does the recipient know if you schedule send in Outlook?
No, recipients have no indication that an email was scheduled. It arrives in their inbox like any normally sent message, with no scheduling metadata visible to them.
