I've recently started checking quite regularly my spam folder as I've noticed more and more legit emails ending up there.
One of them being support emails from TradeMe (one of New Zealand's biggest sites), keep getting put into spam, even after multiple "mark as not spam", along with some other kinda important emails from TradeMe. I've had to put in manual filters to force an email from TM to skip the spam.
And yet, in my own none Gmail hosted email (fastmail), I currently have 2/55 false positive spam emails. I very rarely ever check it. To note I usually get one actual spam (non newsletter blog spam) to my actual inbox, a month.
