How to Create and Use Custom Email Filters to Automatically Sort Incoming Messages
10-Second Summary
In Gmail, click the Show search options icon in the search bar, enter your criteria, then click Create filter and choose actions like applying a label, archiving, or deleting. In Outlook, go to Settings > Mail > Rules and click Add new rule to set conditions and actions. Both services apply filters only to new incoming mail by default, though Gmail offers an option to apply to existing matches.
Step-by-Step Instructions
1. Gmail: Open the Filter Creation Menu
On a computer, open Gmail and click the Show search options icon (the downward arrow) inside the search box at the top of the page . You can also select an existing email, click More, and choose Filter messages like these to pre-fill the criteria .
2. Gmail: Define Your Filter Criteria
Enter the conditions that incoming messages must meet. Common criteria include the sender’s address in the From field, keywords in the Subject, or whether the message Has attachment . Click Search to preview which existing emails match your criteria before committing—this prevents accidentally catching too many messages .
3. Gmail: Choose Actions and Create the Filter
At the bottom of the search window, click Create filter . Select the actions you want: Apply the label to categorize, Skip the Inbox (Archive it) to move it out of your inbox, Mark as read, Star it, Forward it, or Delete it . Check Also apply filter to matching conversations if you want existing emails processed too. Click Create filter to save .
4. Outlook: Navigate to Rules Settings
In Outlook on the web, click the Settings gear icon, then go to Mail > Rules . In Outlook for Mac, select Settings from the Outlook menu, then choose Rules in the sidebar . Click Add new rule (or + Add rule) to start a blank rule .
5. Outlook: Set Conditions and Actions
Name your rule (e.g., “Sort Client Emails”). Under Add a condition, choose criteria such as From (enter specific sender addresses) or Subject contains . Under Add an action, choose Move to and select or create a target folder . You can add multiple conditions or exceptions before saving .
6. Outlook: Save and Verify the Rule
Click Save to activate the rule . Rules run in the order listed; you can drag or use arrows to reorder them . To apply the rule to messages already in your inbox, use the Run rule now option from the rule’s context menu (three dots) .
FAQ / Quick Troubleshooting
Can I create Gmail filters on my phone?
Gmail filter management is limited in the mobile app. Use Gmail on a desktop browser, or open a mobile browser in “desktop site” mode to access the full filter creation interface .
Why do replies to filtered threads still appear in my inbox?
Gmail filters apply only if the new message matches the original criteria. If you filtered by subject keywords, a reply with a different subject line (e.g., “Re: …”) may not match. Rebuild the filter using stable fields like the sender’s address instead .
What happens if multiple Outlook rules match the same email?
By default, Outlook’s “Stop processing more rules” option is enabled, so only the first matching rule applies. If you need multiple actions, disable that option or consolidate conditions into a single rule .