New Outlook Rules: What simple rules can do and what advanced rules cannot

Outlook rules help you automate email management by moving, flagging, or deleting messages as they arrive. The new Outlook for Windows and the classic Outlook for Windows handle rules differently, and many users find that rules they built in classic Outlook do not work the same way in the new app. This article explains the differences between simple rules and advanced rules in the new Outlook, what each type can do, and which limitations you need to know before switching.

How Outlook Rules Work in the New Outlook

The new Outlook for Windows uses a simplified rules engine that runs entirely on the server. This means every rule you create in the new Outlook is a server-side rule. Server-side rules process messages before they reach your inbox, even when Outlook is closed. The tradeoff is that the new Outlook supports only a subset of the conditions and actions available in classic Outlook.

Classic Outlook supports both server-side and client-only rules. Client-only rules run only when Outlook is open. Advanced rules in classic Outlook include conditions such as specific words in the message header, message size, or the presence of attachments. The new Outlook does not support these advanced rules. If you migrate from classic Outlook to the new Outlook, any rule that uses an unsupported condition or action is disabled.

What Are Simple Rules in New Outlook

Simple rules are the only type of rule you can create in the new Outlook. They include basic conditions and actions that cover common email management tasks. You can create a simple rule by going to Settings > Mail > Rules and selecting Add new rule.

What Are Advanced Rules in Classic Outlook

Advanced rules are created in classic Outlook using the Rules and Alerts dialog (File > Manage Rules & Alerts). These rules support dozens of conditions and actions, including running a script, forwarding to a distribution group, or deleting a conversation. Many of these rules are client-only and require Outlook to be running to execute.

What Simple Rules Can Do in New Outlook

Simple rules in the new Outlook support the following conditions and actions. You can combine multiple conditions with AND logic. All rules run as soon as the message arrives on the server.

Available Conditions

• Sender name or email address
• Recipient name or email address (To or Cc)
• Subject contains specific words
• Sent directly to a specific distribution group
• Message is marked with a specific importance level (High, Normal, Low)

Available Actions

• Move to a specific folder
• Copy to a specific folder
• Forward to a person or distribution group
• Forward as attachment
• Flag the message for follow-up
• Mark as read
• Delete the message
• Mark as junk
• Categorize with a specific color category
• Reply using a specific template

Simple rules also support an exception condition: you can stop processing more rules after a rule runs. This is a simple stop rule action, not a full exception list like in classic Outlook.

What Advanced Rules Cannot Do in New Outlook

Advanced rules that rely on client-only conditions or actions do not work in the new Outlook. If you have existing advanced rules from classic Outlook, they are visible in the new Outlook but are turned off. You cannot edit or enable them in the new Outlook.

Unsupported Conditions

• Message header contains specific words
• Message size is between a range
• Message has attachments
• Message is sent from a specific account
• Message is received in a specific time period
• Message has a specific sensitivity (Normal, Personal, Private, Confidential)
• Message is flagged for follow-up
• Message is assigned a specific category
• Message is a meeting request or a response
• Message is from an external sender
• Message is from a sender who is a member of a specific distribution group

Unsupported Actions

• Assign a category
• Assign a task to a person
• Clear the message flag
• Delete the message permanently
• Display a desktop alert
• Play a sound
• Print the message
• Redirect to a person or distribution group (redirect changes the recipient; forward keeps the original recipient)
• Run a script
• Start an application
• Stop processing more rules

If you use any of these conditions or actions in classic Outlook, those rules will not transfer to the new Outlook. You must either adjust your workflow or continue using classic Outlook for those rules.

How to Check Which Rules Will Work After Switching to New Outlook

Before switching from classic Outlook to the new Outlook, review your existing rules. Open classic Outlook and go to File > Manage Rules & Alerts. For each rule, note the conditions and actions. Compare them with the lists above. If a rule uses any unsupported condition or action, it will be disabled in the new Outlook.

You can also export your rules from classic Outlook as a backup. In classic Outlook, go to File > Options > Mail > Rules and Alerts. Select a rule and click Options > Export Rules. Save the file as an .rwz file. This file can be imported back into classic Outlook if needed.

Common Issues and Limitations with New Outlook Rules

My existing rules are disabled after I switch to new Outlook

This happens when a rule contains a condition or action not supported by the new Outlook. The rule is not deleted; it is simply turned off. To see the disabled rules, go to Settings > Mail > Rules. They appear with a warning icon. You cannot edit them in the new Outlook. Open classic Outlook to edit or delete the unsupported elements, then switch back to new Outlook to verify the rule is enabled.

I cannot create a rule that moves messages from a specific sender to a subfolder

You can create this rule as a simple rule. In Settings > Mail > Rules, select Add new rule. Choose a name, then select the condition “From” and enter the sender email address. Select the action “Move to” and choose the target folder. The rule runs on the server and works even when Outlook is closed.

My rule that forwards messages as attachments stopped working

Forward as attachment is supported in the new Outlook as a simple rule action. If the rule was created in classic Outlook and uses additional conditions like message size or attachments, it will be disabled. Recreate the rule in the new Outlook using only supported conditions.

I need a rule that runs a script or starts an application

The new Outlook does not support running scripts or starting applications. This is a client-only action that requires Outlook to be open and the VBA runtime to be available. If you rely on script-based rules, you must use classic Outlook. There is no workaround in the new Outlook.

Simple Rules vs Advanced Rules: Comparison

Item	Simple Rules (New Outlook)	Advanced Rules (Classic Outlook)
Rule location	Server-side only	Server-side or client-only
Processing	Runs on Exchange server, even when Outlook is closed	Client-only rules run only when Outlook is open
Number of conditions	Up to 5 conditions combined with AND	Unlimited conditions with AND and OR logic
Supported conditions	Sender, recipient, subject, distribution group, importance	All simple conditions plus header, size, attachments, account, time, sensitivity, flag, category, meeting, external sender, distribution group membership
Supported actions	Move, copy, forward, forward as attachment, flag, mark read, delete, junk, categorize, reply template	All simple actions plus assign category, assign task, clear flag, permanent delete, desktop alert, sound, print, redirect, run script, start application, stop processing
Editing	Can create and edit in new Outlook	Cannot be created or edited in new Outlook; must use classic Outlook
Migration	Rules with unsupported elements are disabled	Rules with only supported elements work in new Outlook

Conclusion

You can now create simple rules in the new Outlook for basic email management tasks such as moving, forwarding, or deleting messages. Advanced rules that use conditions like message size, header text, or attachments are not supported in the new Outlook. If you rely on client-only rules that run scripts or start applications, you need to stay with classic Outlook. For most users, simple rules handle the majority of daily automation needs. Try recreating your most important rules in the new Outlook first, then decide whether to switch fully.