emails from certain email addresses do not show up in Outlook inbox unless I search for them

The messages are present in the mailbox, so first identify their actual folder from the search results; if they are already in Inbox, clear or reset the Inbox view, and if they are elsewhere, correct the rule, Focused Inbox, or junk setting that moved them.

1. Identify where Outlook is storing the messages

1. Search for one affected sender.
2. Select View > Change View > Single so columns can be displayed.
3. Select View > View Settings > Columns.
4. Add the In Folder column, and select OK.
5. Check In Folder beside an affected message.

Classic Outlook supports adding columns after switching from the default Compact view to a list view.^1^

The folder shown determines the correction below.

2. If the folder is Inbox

The messages are being hidden by the current Inbox view or filter:

1. Open Inbox and press Esc to clear any active search or filter.
2. Select View > View Settings > Filter.
3. Clear the filter settings, then select OK.
4. If the messages remain hidden, select View > Reset View and confirm.

Reset only the Inbox view; there is no need to change views in every folder.

Also check whether Focused and Other appear above the message list. If the messages are under Other:

1. Right-click a message from the sender.
2. Select Move to Focused > Always Move to Focused.

This makes future messages from that sender appear on the Focused tab.^2^

3. If the folder is another mail folder or Deleted Items

A rule may be moving messages automatically:

1. Select File > Manage Rules & Alerts.
2. Review rules whose conditions mention the affected sender, address, domain, or subject.
3. Clear the rule’s checkbox to disable it temporarily, or select Change Rule to correct its destination.
4. Move existing messages back to Inbox.

Rules can move or delete incoming messages based on sender and other conditions.^3^

4. If the folder is Junk Email

1. Open Junk Email.
2. Select a legitimate message.
3. Select Home > Block > Never Block Sender.
4. Alternatively, open Home > Block > Junk E-mail Options:
   • Remove the address or domain from Blocked Senders.
   • Add the exact address to Safe Senders.

Blocked senders are diverted to Junk Email, while addresses on the Safe Senders list are not treated as junk by classic Outlook.^4^

For an Exchange or Exchange Online mailbox, a local Safe Senders change might not override server-side filtering. If messages continue going to Junk or quarantine, the organization’s Microsoft 365 administrator must check the server-side policy.^4^

5. If Outlook search and the web mailbox disagree

Sign in to the mailbox through Outlook on the web and locate the same message.

• Visible online but not correctly in classic Outlook: create a test Outlook profile through File > Account Settings > Manage Profiles > Show Profiles > Add. If the new profile displays the Inbox correctly, the original profile is damaged or misconfigured.^5^
• Stored in the same unexpected folder online: the behavior is mailbox-side, so revisit web rules, junk settings, and Focused/Other classification rather than rebuilding the Windows search index.

Because searching already finds the messages, rebuilding the search index is not the first action; the important diagnostic is the In Folder value.

References

1. [New Outlook](https://support.microsoft.com/outlook/mail/change-how-the-message-list-is-displayed-in-outlook#tab/classic-outlook)
2. [Classic Outlook](https://support.microsoft.com/outlook/mail/focused-inbox-for-outlook)
3. [New Outlook](https://support.microsoft.com/outlook/mail/manage-email-messages-by-using-rules-in-outlook)
4. [Classic Outlook](https://support.microsoft.com/outlook/mail/block-or-unblock-senders-in-outlook)
5. [Classic Outlook](https://support.microsoft.com/outlook/troubleshooting-outlook-search-issues#classic-outlook-search-returns-no-results)