Stop auto refresh on app start

I use eMClient for checking a number of POP3 accounts. I have recently upgraded to eMClient v10.0.3266. In v9, I had the app set so that it didn’t auto refresh on startup but waited for me to click the refresh button. How can I do this in the latest version?

Sorry, just noticed there’s another post already on this topic but can’t work out how to delete this one.