Outlook Search Operator Cheatsheet
Outlook search uses Keyword Query Language. This page gives the working operators and the ones that look like they should work but don't.
| from:"Sam Smith" | From a specific person (name or address) |
| to:sam@example.com | Sent to a specific recipient |
| subject:proposal | Subject contains the word |
| hasattachment:true | Has at least one attachment |
| received:today | Received today (also: yesterday, this week, last week, this month) |
| received:1/1/2026..3/31/2026 | Date range (US date format) |
| sent:>1/1/2026 | Sent after a date |
| importance:high | Marked high importance |
| kind:meeting | Specific item type (also: contacts, tasks, notes) |
| size:>5MB | Size threshold |
| category:Red | Tagged with a category |
| isread:no | Unread (also: isread:yes) |
| from:sam AND subject:proposal | Boolean AND |
| from:sam OR from:alex | Boolean OR |
| NOT subject:newsletter | Boolean NOT |
Lists from:, to:, subject:, hasattachment:, received:, sent:, importance:, kind:, plus the date range and size operators. Flags syntax differences between Outlook Web and Desktop.
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