How to Fix Missing Advanced POP Settings in Outlook for Mac
Question details
The user is unable to find the Advanced settings option for POP accounts in Outlook for Mac, preventing them from automatically deleting messages from the mail server.

- Product
- Microsoft Outlook for Mac
- Device & OS
- macOS
- Scenario
- Attempting to configure automatic deletion of emails from the server for a POP account.
- Observed behavior
- The Advanced settings option is missing in Outlook for Mac version 16.75.2, preventing the configuration of server message deletion rules.
Verify that your email account is configured as a POP account rather than IMAP or Exchange, and ensure you have your email provider's server portal login details on hand.
Revert to Legacy Outlook for Mac to Access POP Settings
The 'New Outlook for Mac' interface often hides legacy POP configurations. Reverting to the legacy version can restore access to these advanced settings.
Microsoft redesigned the New Outlook for Mac to streamline account setups, which led to the removal of several legacy settings for older protocols like POP3. Reverting to the legacy interface provides access to the classic Preferences menu where server deletion rules reside.
Launch your Microsoft Outlook application on your Mac.
Look for the 'New Outlook' switch in the top-right corner of the application window, or click on 'Outlook' in the top Apple menu bar and uncheck 'New Outlook'.
Once the application reloads in the legacy view, go to Outlook > Preferences > Accounts.
Select your POP account from the left pane, click the 'Advanced' button, and locate the settings to delete messages from the server after a selected period.

Configure Server-Side Deletion via Webmail
If Outlook for Mac cannot handle server-side deletions locally, you can configure this behavior directly through your email provider's webmail interface.
Contact Microsoft Support for Client Updates
Since Windows-based fixes do not apply to Mac, contacting support is the safest step to determine if features will be added in future updates.
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Frequently Asked Questions
Why are Advanced settings missing in the New Outlook for Mac?
Microsoft redesigned the New Outlook for Mac to streamline account setups and modernize the architecture. This unfortunately led to the removal or hiding of several legacy advanced settings, particularly for older protocols like POP3.
Can I use Windows Control Panel fixes for Outlook for Mac?
No. Any troubleshooting steps involving the Windows Registry or Windows Control Panel are entirely inapplicable to macOS. Mac users must rely on Outlook's native Preferences or standard macOS application troubleshooting.
Should I use IMAP instead of POP to avoid this issue?
Yes, switching from a POP account to an IMAP account allows the mail server to synchronize your messages seamlessly across all devices, eliminating the need to manually configure message deletion after a specific period.
How do I know which version of Outlook for Mac I am currently using?
Open Outlook, click on 'Outlook' in the top Apple menu bar, and select 'About Outlook.' A window will pop up displaying your current version number, such as 16.75.2.




