Hello Peter,
you can either set the global Synchronization time or leave out the specific account out of that global sync.
If the account is left out (Option to ‘Include when sending/receiving emails’ in Accounts) it will be synchronized only when you manually Refresh.
I will add your idea to our feature request list so it can be considered for future updates.
I tried this on 7.2.36465, and I cannot reproduce it.
I setup two POP3 email accounts in eM Client, and set them not to be included when sending/receiving.
I setup a test server to send messages to both of these accounts every 30 seconds (just so the inboxes were regularly populated), and eM Client I set to sync every minute (just so it did not take too ling to test).
Neither of the accounts receive messages on the system sync, nor do they receive their messages when I click Refresh.
If I manually use Send and Receive for the one account, it does not download messages for the other account.
But it would be nice if you could kinda “disable” an IMAP account temporarily. We have a team account that gets automated email notifications, and the notification popups on MacOS are spamming me, drowning all the emails from the individual account. That’s the scenario. Maybe selective notifications per account would be helpful. But yeah, I deleted the other account now, only solution I could find.