Apple Mail client: I have 10 email accounts and only one gives me constantly an !. It is of course the Yahoo Account that does not work very often. Most of the time I get this exclamation mark ! then I try to click on it and of course still nothing happens as expected. Time for you to fix that problem and since nobody reads this message anyway, I have no high hopes that this will ever be resolved, we live in a world that no longer humans are in but rather just machines that are too dumb to fix stuff. Maybe you want to check your security handling and stop with patronizing customers.