Auto Forwarding in Outlook: Setup and Key Options

To set up auto forwarding in Outlook, open Settings, choose Mail > Forwarding, turn on forwarding, enter the destination address, and save. In classic Outlook for Windows, create an inbox rule instead; the exact steps depend on which Outlook version and account you use.

What Outlook forwarding does

Automatic forwarding sends incoming email from one mailbox to another without requiring you to open each message. It can help when you are changing addresses, monitoring a shared workflow, or temporarily checking one inbox from another. Forwarding normally applies to new messages that arrive after the setting or rule is enabled; it does not automatically move old mail already in the mailbox.

Outlook offers more than one way to do this. The simpler forwarding setting is available in Outlook on the web and new Outlook for Windows. Classic Outlook for Windows commonly uses rules. A rule can offer more control, such as forwarding only messages from a particular person, but its behavior depends on the account type and the rule actions you choose.

Set up forwarding in Outlook on the web or new Outlook

These steps apply to Outlook on the web and, in general, the new Outlook for Windows. The labels can vary slightly as Microsoft updates its interface.

Sign in to Outlook with the mailbox you want to forward.
Select the Settings gear near the top of the window.
Choose Mail, then Forwarding. If the Mail settings are not shown immediately, select View all Outlook settings first.
Turn on Enable forwarding and enter the email address that should receive messages.
If you want messages to remain in the original mailbox, select Keep a copy of forwarded messages.
Select Save, then send a test message to the Outlook address and confirm it arrives at the destination.

Forwarding is configured on the mailbox, not just on the computer where you set it up. Once saved, it can continue while you are signed out or using another device. If you cannot see Forwarding, your organization may have disabled it, or your account may use a different administration or mail system.

Create a forwarding rule in classic Outlook for Windows

Classic Outlook for Windows generally uses rules for automatic forwarding. This is useful when you want to forward only certain incoming messages, rather than every message. In Outlook for Microsoft 365, open the classic desktop app and follow these steps:

Select File > Manage Rules & Alerts.
On the E-mail Rules tab, select New Rule.
Under Start from a blank rule, choose Apply rule on messages I receive, then select Next.
Choose the conditions for the messages you want to forward, such as messages from a specific sender or with particular words in the subject. Select Next.
Select the action forward it to people or public group. In the lower rule-description box, select the underlined people or public group link and choose or enter the recipient.
Select Next to add any exceptions, if needed. Select Next again, give the rule a recognizable name, check Turn on this rule, and select Finish.

To forward every incoming message, leave the condition boxes unchecked when Outlook asks which conditions to apply, then confirm that you want the rule to apply to all messages. This is broad: it can include newsletters, receipts, personal correspondence, and messages that were not intended for the recipient. Review the rule carefully before enabling it.

Choosing between a forwarding setting and a rule

Use the built-in forwarding setting when you want all incoming messages sent to one destination with minimal setup. Use a rule when you need conditions, such as forwarding only mail from a manager, messages with a specific subject, or mail sent to a particular alias. A rule may also let you perform other actions, such as assigning a category, but that adds complexity and makes troubleshooting harder.

For example, if you are away for two weeks and need to see all new mail in a second mailbox, a simple forwarding setting may be appropriate. If you only need invoices from one supplier sent to an accounts mailbox, a rule with a sender condition is more selective. Make sure the condition matches the messages you actually receive; a changed sender address or subject line can cause a rule to miss mail.

Rules created in classic Outlook may be server-side or client-only. A server-side rule is handled by the mail server and usually runs when Outlook is closed. A client-only rule depends on classic Outlook running on the computer where the rule is stored. Outlook may identify a rule as client-only when it uses an action or condition that the server cannot process. If uninterrupted forwarding matters, check the rule details and test it with Outlook closed.

Forwarding versus redirecting

Forwarding and redirecting are related but not identical. With ordinary forwarding, the delivered message generally appears to come from the person who forwarded it, while the original sender is visible in the forwarded content or message history. Redirecting is designed to pass the message on while preserving the original sender information more directly, so the recipient can reply to the original sender.

Classic Outlook rules may offer a redirect action as well as a forward action. Choose based on what the recipient needs to see and how replies should work. A forwarded message is often clearer when you are personally passing information along. Redirecting can be more suitable for routing a message to someone who should handle it as though it had reached them directly. Availability and behavior can vary with the mailbox service and account policies, so test the result before relying on it for an important process.

Keep a copy and decide what happens to the original

When you use the Outlook web forwarding setting, Keep a copy of forwarded messages controls whether the incoming message remains in the original mailbox as well as being sent onward. Keeping a copy is useful for recordkeeping and makes it easier to find messages later. It also means the mailbox will continue to use storage as new mail arrives.

With a classic Outlook rule, forwarding is an action on the message; do not assume that the message is deleted from the original mailbox. Review the full rule for any separate action such as deleting or moving the message. If you need a shared record, keeping the original and forwarding a copy is generally easier to audit than moving or removing mail, but your organization may have specific retention requirements.

External forwarding, privacy, and organizational limits

Forwarding messages outside your organization can expose confidential information, personal data, attachments, or internal discussions. Before directing work email to a personal account, check your employer’s policy and consider whether the destination mailbox has appropriate security. Forwarding may also bypass normal controls for reviewing or retaining business communications.

Microsoft 365 organizations can restrict automatic forwarding to external addresses. An administrator may block it for the whole organization, allow it only for approved recipients, or apply other security policies. If Outlook displays an error, refuses to save the setting, or the rule appears enabled but external messages never arrive, ask your IT administrator whether outbound automatic forwarding is permitted. Repeatedly creating alternative rules will not override a server-side restriction.

Forwarding can also create loops. For example, if mailbox A forwards to mailbox B and mailbox B forwards back to A, messages may circulate or be blocked as suspicious. Avoid chains that point back to an earlier mailbox, and do not forward to a group that includes the original mailbox unless you understand how the mail system handles it. For sensitive mail, forwarding is not a substitute for giving someone approved access to the mailbox.

Test, pause, or remove forwarding

After setup, send a test message from a separate account. Check the destination inbox and junk folder, and confirm whether the original mailbox retains a copy. If you used a rule with conditions, test both a message that should match and one that should not. This helps catch an overly broad condition or a typo in the destination address.

To stop simple forwarding, return to Settings > Mail > Forwarding, turn off Enable forwarding, and save. To stop a classic Outlook rule, open File > Manage Rules & Alerts, clear the checkbox beside the rule, or select and delete it. If messages continue to be forwarded, check for another rule, a setting on a different mailbox, or an organization-level configuration. Do not assume that disabling one rule removes other forwarding arrangements.

Common problems and practical fixes

The Forwarding option is missing: Confirm that you are in the correct mailbox and open all Outlook settings. For a work or school account, ask the administrator whether the feature is disabled.
The address cannot be saved: Check for spelling errors and verify that the recipient address is valid. Some organizations restrict forwarding to external domains.
Only some messages arrive: A rule may have conditions or exceptions that exclude messages. Check the rule description and send a test message that matches each condition.
Forwarding works only while Outlook is open: A classic Outlook rule may be client-only. Review its actions and conditions, and ask your administrator about a server-side option if the rule must run continuously.
Messages seem to disappear from the original inbox: Look for a move or delete action in the rule and check the destination folders, including Archive and Deleted Items. The basic forwarding setting has a separate keep-a-copy option.
The forwarded message is missing an attachment: Check whether the attachment was present in the original message and whether a security policy or file limit affected delivery. Compare the original and forwarded copies before changing the rule.

Frequently Asked Questions

Can I automatically forward every email in Outlook?
Yes. Use the Forwarding setting in Outlook on the web or new Outlook, or make a classic Outlook rule with no conditions. Your organization may restrict this, especially for external recipients.

Will Outlook forward messages when my computer is off?
The web forwarding setting is handled by the mailbox service, so it does not require your computer to stay on. A classic Outlook rule may be client-only; check the rule because those rules can depend on Outlook running.

Can I forward mail to more than one address?
The forwarding setting is typically for one destination address. In classic Outlook, a rule can be configured with recipients, subject to the options available for your account. For multiple destinations, confirm the result with test messages and avoid creating forwarding loops.

Does forwarding include old messages?
No. Automatic forwarding normally applies to new messages after it is enabled. To send older messages, use a separate manual process or a carefully planned rule; do not expect the forwarding switch to transfer your inbox history.

Can I forward only messages from one person?
Yes. Create a rule in classic Outlook and select the condition for messages from a specific person, then choose the forward action and recipient. Review any exceptions and test with both matching and nonmatching messages.

Which setup should you use?

For straightforward forwarding of all new mail, start with Settings > Mail > Forwarding in Outlook on the web or new Outlook, and decide whether to keep a copy. For selective forwarding, use a rule and verify whether it runs on the server or depends on classic Outlook being open. In either case, test the destination, check your organization’s policies, and remove forwarding when you no longer need it.

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