Thunderbird loads mail in the Inbox folder only after a specific date, not older! Although you can find them by searching. The system runs Win10 and the latest Thunderbird version is installed Troubleshooting so far: * Repair Inbox folder * Delete .msf files * Change incoming mail server settings * Uninstall & reinstall Thunderbird recreating mail account Keep in mind that the mail loads perfectly on other PC, smartphones and my Mac. Any tricky suggestions that may I have missed? Thank you in advance.