How to disable automatic mail checking in Mozilla Thunderbird

Question

I got 4 email accounts added to Mozilla Thunderbird. I need 3 of them to automatically check for a new email and 1 only when I click "Receive Mail". I went to Settings Tools-> Account Settings-> [e-mail]- > Server Settings and unchecked “Check for new messages every 10 minutes” - but it still automatically receives a new email for this account.

Answer 1

Apparently, I also needed to go to Advanced and uncheck "Use the IDLE command if the server supports it", after which the mail stopped arriving the way I wanted.

I found this little information here: https://makandracards.com/makandra/875-disable-automatic-e-mail-checking-in-thunderbird-3