So I press it and add (for example) OUR OWN JIRA SERVER to the whitelist... which HAS NO EFFECT. Every goddamned day, every Jira message is flagged as dangerous and has blocked content.
I complained to Microsoft, who made up some pathetic excuse about how that's not what that button does... and how every person at my company should contact OUR IT department to have the senders of every E-mail they receive added to some OTHER whitelist, one at a time. Seriously.
The stupidity level at Microsoft today isn't funny. It's sickening. It's also offensive, wasting paying customers' time to the tune of thousands of man-hours daily (and that's probably just at my company).