Too easy to accidentally click on unsubscribe button when selecting email to read.
I've done this twice in the first morning I had the new mailbox, there is less than two cm of the heading of the email available to click on to open it, any further to the right you go to the unsubscribe option. Really badly designed as you then have to click cancel on the unsubscribe box you didn't intend to open.
71st
ranked