How to Automatically Delete Emails by Sender or Subject in Outlook
Question details
The user wants to set up automatic deletion of emails based on specific senders or subjects in Microsoft Outlook.
- Product
- Microsoft Outlook
- Device & OS
- not provided
- Scenario
- Managing an overloaded inbox by automatically filtering out and deleting unwanted emails.
- Observed behavior
- The user needs to configure Inbox rules or retention policies to automatically move matching messages to the Deleted Items folder.
Before configuring automatic deletion rules, make sure you do not accidentally delete important emails. We recommend testing the rule by moving emails to a temporary folder first before routing them directly to Deleted Items.
Set Up an Inbox Rule for Specific Senders or Subjects
The most direct method is to create an Outlook rule that targets specific sender addresses or subject keywords and automatically moves those emails to the Deleted Items folder.
Outlook rules run automatically in the background as soon as new messages arrive in your Inbox. This is ideal for blocking persistent spam or unwanted newsletters.
Open Outlook, go to the 'Home' tab on the ribbon, click 'Rules', and select 'Manage Rules & Alerts'.
Click 'New Rule'. Under the 'Start from a blank rule' section, select 'Apply rule on messages I receive' and click 'Next'.
Check the box for 'from people or public group' to filter by sender, or 'with specific words in the subject' to filter by subject line. Click the underlined text in the bottom box to enter the specific email addresses or words.
Click 'Next' and check the box for 'delete it' (which moves it to Deleted Items) or 'permanently delete it' (which bypasses the trash).
Click 'Next' to add any exceptions if needed, then click 'Finish'. Click 'Apply' and 'OK' to save your new rule.
Apply Microsoft 365 Retention Policies for Timed Deletion
If you need to automatically delete emails after a certain time period or apply organization-wide rules, use retention policies rather than individual Inbox rules.
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Frequently Asked Questions
Can I automatically delete emails older than 30 days in Outlook?
Yes, you can use the AutoArchive feature. Right-click the folder you want to manage, select 'Properties', go to the 'AutoArchive' tab, and set it to clean out items older than 30 days by moving them to the Deleted Items folder.
How do I stop an Outlook rule from deleting my emails?
Go to the Home tab, click 'Rules', and select 'Manage Rules & Alerts'. Find your deletion rule in the list. You can temporarily disable it by unchecking the box next to it, or select it and click 'Delete' to remove the rule permanently.
Will emails deleted by a rule go to the trash or be permanently deleted?
By default, the 'delete it' action in Outlook rules moves the email to the 'Deleted Items' folder. They are only permanently deleted when you empty that folder, unless you selected the 'permanently delete it' action during the rule setup, which bypasses the Deleted Items folder entirely.
