Where to Find Delay Send Rules in New Outlook and What Still Differs

If you rely on delaying outgoing messages to catch mistakes or schedule emails for a specific time, you may have noticed that the new Outlook for Windows handles this feature differently. The classic Outlook desktop application provides a built-in Delay Delivery button and server-side rule options that are not fully replicated in the new Outlook. This article explains exactly where to find the delay send functionality in the new Outlook, which features have changed, and what workarounds exist for the missing capabilities.

How Delay Send Works in Classic Outlook vs the New Outlook

In classic Outlook, you can delay a single message by selecting Options > Delay Delivery in the compose window, which opens the Properties dialog to set a do-not-deliver-before time. You can also create a rule via File > Manage Rules & Alerts > New Rule > Apply rule on messages I send > Defer delivery by a number of minutes. This rule applies to all messages you send from a specific account or meeting a condition, and the delay can be any whole number of minutes up to 120.

The new Outlook for Windows, which is built on the same codebase as Outlook on the web, does not include the classic rule engine. Instead, it uses the Exchange Online rule engine that runs on the server. This means the delay delivery rule is still available, but it is created and managed through a different interface. The Schedule Send feature in the compose window replaces the per-message Delay Delivery option and works independently of rules.

Why the Change Matters

The new Outlook is designed for cloud-connected accounts—Microsoft 365, Exchange Online, and Outlook.com. It does not support on-premises Exchange accounts or PST files. The rule engine is server-side only, which means rules run even when Outlook is closed. However, the delay rule in new Outlook is limited to a maximum of 120 minutes, matching the classic Outlook rule limit. The per-message Delay Delivery option in classic Outlook allowed a specific date and time up to several days in advance, but that feature is now replaced by Schedule Send.

Where to Find and Set Up Delay Send Rules in New Outlook

The delay send rule in new Outlook is managed from the web interface, not from within the app itself. Follow these steps to create a delay rule for all outgoing messages.

1. Open Outlook on the web
   Go to outlook.office.com in your browser and sign in with your Microsoft 365 or Outlook.com account. The new Outlook desktop app syncs rules from the same server, so you only need to create the rule once.
2. Go to Mail > Settings
   Click the gear icon in the top-right corner, then select View all Outlook settings at the bottom of the Settings pane. This opens the full settings menu.
3. Navigate to Rules
   In the left pane, click Mail then click Rules. You will see a list of any existing rules. Click Add new rule to create a new one.
4. Name your rule
   Give the rule a descriptive name, such as “Delay all outgoing mail by 5 minutes.”
5. Set the condition
   Under Add a condition, select Apply to all messages if you want to delay every message you send. Alternatively, you can choose conditions like Sent to a specific recipient or Subject includes a keyword.
6. Set the action
   Under Add an action, select Delay delivery by. Choose the number of minutes from 1 to 120. Click OK to save the action.
7. Turn on the rule
   Ensure the toggle next to the rule name is set to On. The rule will apply immediately to all new messages you send from the new Outlook desktop app and Outlook on the web.

To verify the rule is working, compose a test email and send it. The message will remain in your Outbox folder for the duration you set before it is sent. You can check the Outbox by clicking Sent Items and then looking for the Outbox folder in the folder pane.

Using Schedule Send as an Alternative to Per-Message Delay

If you need to delay a single message to a specific date and time, use the Schedule Send button in the compose window. This feature is available in both the new Outlook desktop app and Outlook on the web.

1. Compose your message
   Create a new email as usual. Fill in the recipient, subject, and body.
2. Click the dropdown arrow next to Send
   Instead of clicking the Send button directly, click the small arrow next to it. A menu appears with options: Send now, Send later, and Send at a specific time.
3. Select Send later
   Choose Send later to schedule the message for a preset time, or Send at a specific time to pick a custom date and time. You can schedule up to 30 days in advance.
4. Confirm the schedule
   After selecting the time, click Send. The message moves to your Outbox and is sent automatically at the scheduled time.

Schedule Send works independently of any delay rule. If you have a delay rule set to 5 minutes and you schedule a message for tomorrow at 9 AM, the rule does not add extra delay. The message is sent exactly at the scheduled time.

Key Differences Between Classic Outlook and New Outlook for Delay Send

Several features that existed in classic Outlook are either missing or work differently in the new Outlook. Understanding these differences helps you avoid confusion and choose the right method for your workflow.

No Do-Not-Deliver-Before Time in Compose

Classic Outlook had a Do not deliver before field in the Properties dialog (File > Properties > Delivery options). This allowed you to set a specific date and time for a single message without using a rule. New Outlook does not have this dialog. You must use Schedule Send instead.

Rule Delay Maximum Is 120 Minutes

Both classic and new Outlook limit the delay delivery rule to a maximum of 120 minutes. However, classic Outlook allowed you to create a rule that deferred delivery by a number of minutes, while new Outlook requires you to use the web interface. The 120-minute limit is the same.

No Client-Side Only Rules

Classic Outlook supported client-side only rules that ran even when Outlook was closed. These rules could perform actions like playing a sound or moving items to local folders. New Outlook does not support client-side rules. All rules in new Outlook are server-side and require a Microsoft 365 or Exchange Online account.

Schedule Send Replaces Delay Delivery

The per-message delay feature in classic Outlook was limited to a specific date and time up to several days in advance. Schedule Send in new Outlook also allows scheduling up to 30 days in advance, but it is accessed from the Send button dropdown rather than a separate dialog. The functionality is similar but the user interface is different.

When Delay Send Rules Do Not Work or Behave Differently

Even after setting up a delay rule, you may encounter situations where the delay does not apply as expected. Here are the most common issues and their causes.

Messages Sent Immediately Despite a Delay Rule

If you have a delay rule enabled but messages are still sent immediately, check the following:
– The rule condition must match the message you are sending. If the rule is set to apply only to messages sent to a specific domain, messages to other recipients will not be delayed.
– The rule must be turned on. In Outlook on the web, go to Mail > Settings > Mail > Rules and verify the toggle is set to On.
– If you are using the new Outlook desktop app, close and reopen it after creating the rule. The app syncs rules from the server upon startup.

Delay Rule Applies to Only One Account

Delay rules in new Outlook are account-specific. If you have multiple email accounts configured in the new Outlook, you must create a separate delay rule for each account. Each rule applies only to messages sent from that account.

Schedule Send Overrides the Delay Rule

When you use Schedule Send on a specific message, the delay rule is ignored for that message. The message is sent at the scheduled time, not after the rule’s delay period. This is by design because Schedule Send sets an absolute send time.

Comparison: Classic Outlook vs New Outlook for Delay Send

Item	Classic Outlook	New Outlook
Per-message delay	File > Properties > Do not deliver before	Schedule Send button in compose window
Rule-based delay	File > Manage Rules & Alerts > New Rule	Outlook on the web > Settings > Mail > Rules
Maximum rule delay	120 minutes	120 minutes
Maximum Schedule Send delay	Not available	30 days
Client-side rules	Supported	Not supported
Works offline	Yes, for client-side rules	No, rules require server connection

The new Outlook for Windows does not include a local rule editor. All rules are created and managed via Outlook on the web. The Schedule Send feature replaces the classic per-message delay option and offers greater flexibility with up to 30 days of scheduling. The rule-based delay remains limited to 120 minutes but works reliably for cloud-connected accounts.