If the recipient can't find the message in their Inbox folder, it might have been deleted or moved to another folder (such ...

If the recipient can't find the message in their Inbox folder, it might have been deleted or moved to another folder (such as Junk Email) either manually or automatically based on an Inbox rule or Sweep rule the recipient set up. Ask them to search for the message across all folders in their mailbox.

Tip: If the recipient still can't find the message in Outlook, they might be having connectivity issues. Ask them to try restarting Outlook or use Outlook on the web to check for the message. To see detailed steps for fixing Outlook, see Fix Outlook connection problems in Office 365.