Mac Mail Search Not Finding Emails: Reindex and Fix Search

You search in the Mail app on your Mac and it doesn’t find emails you know exist.

Why: Mail search relies on the Spotlight index. If you’re searching the wrong scope, or the index for a mailbox is incomplete, results come up short. Widening the search and refreshing the index fixes it.

Fix 1: Search all mailboxes, not just one

If a mailbox is selected in the sidebar, Mail searches only that mailbox.

1. In the sidebar, click All Mailboxes (or click All in the Favorites bar) before you type your search.
2. Type your search term and check the results again.
3. Confirm the message isn’t hiding in Junk or Trash, which can be excluded from search depending on your settings.

Fix 2: Sync, then rebuild the mailbox

If the message is on the server but not turning up in search, refresh the local copy.

1. Make sure the account is online — choose Mailbox > Take All Accounts Online.
2. Click the mailbox you’re searching, then choose Mailbox > Synchronize > [account] to pull the latest from the server.
3. Still missing? With the mailbox selected, choose Mailbox > Rebuild. This re-downloads the mailbox and is the recommended step when the Entire Message search option can’t find messages. The mailbox may look empty until the rebuild finishes.

Fix 3: Reindex Spotlight so Mail search rebuilds

If search is broken across mailboxes, force Spotlight to reindex.

1. Open System Settings, then click Spotlight (on older macOS, Siri & Spotlight).
2. Click Spotlight Privacy (older macOS: Search Privacy).
3. Click the add button (+) and add your startup disk (Macintosh HD), or drag it into the list. This temporarily blocks it from search.
4. Wait a few seconds, select that item in the list, then click the remove button (–).
5. Click Done. Spotlight reindexes the disk — including Mail — in the background. This can take a while; let it finish, then try searching again.

FAQ

Why does Mail search miss recent emails? Either you’re searching a single mailbox instead of All Mailboxes, or that mailbox’s local copy is out of date — synchronize or rebuild it (Fix 2).

Does reindexing Spotlight delete my email? No. Reindexing only rebuilds the search index. Your messages aren’t touched.

Reindexing is taking a long time — is that normal? Yes. Spotlight reindexes everything on the disk, which can take a while depending on how much data you have. Leave it running and search once it settles.

Sources: Apple Support — If searching doesn’t find the right emails in Mail on Mac, Apple Support — Rebuild the Spotlight index on your Mac