Download e-Mail on startup.
Thunderbird 91.5.1, running on Windows 10, does not automatically download e-Mails on startup, in spite of the Server Settings being checked to "Check for new messages at startup."
Thunderbird 91.5.1, running on Windows 10, does not automatically download e-Mails on startup, in spite of the Server Settings being checked to "Check for new messages at startup."