Include when sending/receiving emails

I have an old email account that I want to turn off but I occasionally want to check. I unchecked the “include when sending/receiving email” but em Client is still receiving spam emails to this account’s inbox.

I can send an email from another email account to this account and em Client won’t receive it until I request to “Receive all messages”. But the spam seems to keep getting through somehow.

I have another email account turned off and have no problems with it.

em Client version: 8.2.1659
email account with swbell dot net
IMAP Host: imap dot mail dot yahoo dot com
SMTP Host: smtp dot mail dot yahoo dot com

FYI: message board software won’t allow me to put any dot (.) com text so I have to spell out dot