How to configure full-text search for emails in the mail server.

Our company's webmail interface supports email search, allowing you to search for specified content in all emails.

The default email search scope is the last six months, so emails older than six months cannot be searched. If you need to search all emails, you can log in with the postmaster account, enter mailbox management, and change the "Email Search Scope" menu to "All Emails". After this setting is applied, searches on the webmail interface will cover all emails.